This paper presents a column generation-based heuristics for the Vehicle Routing and scheduling Problem with Soft Time Windows (VRPSTW). The subproblem has been solved using a modified stochastic push forward insertion heuristics that incorporates the early and late arrival penalties. The useful dual information (shadow prices) from the column generation master problem guides the heuristic subproblem to provide negative reduced cost columns of sufficient quality. The performance of column generation-based heuristics is evaluated comparing its results with a genetic algorithms heuristics whose initial population is based on the same insertion heuristics as used in the column generation subproblem. The results showed that the column generation-based heuristics produced better quality solutions, both in terms of cost and environment (CO2), in most cases in only quarter of the computation time, on average.

抄録全体を表示

This paper examines the traffic and environmental impacts of various scenarios of freight vehicle restrictions in Metro Manila. Vehicle flows and emissions are estimated for a range of alternative scenarios involving truck restraints on urban roads. Network flows are approximated through a traffic assignment model and an origin-destination matrix for Metro Manila. Vehicle emissions are then estimated using speed and emission factors. The alternative scenarios are then compared and analyzed for two spatial areas; i.e. regional and area-specific areas. Results of the study show that the existing large freight vehicle restriction policy in Metro Manila is not very effective when viewed from a regional scale, although if viewed from an area-specific scale, the policy can be very effective in reducing traffic and environmental impacts.

抄録全体を表示

This paper aims at estimating vehicle routing and scheduling which includes dynamic and stochastic elements of travel time on links. In order to consider these elements of travel time, three shortest path models were used. First model is path based on mean travel time by Dijkstra methods (1959), second one is the adaptive least-expected time path by Miller-Hooks (2001) and third one is expected shortest path by Fu and Rillet (1998). Vehicle routing and scheduling were calculated based on link costs by these shortest path models. The deliveries of the vehicle routing and scheduling were simulated and total costs of the delivery were compared. As a result, shortest path models which consider dynamic and stochastic elements outperform the one based on mean travel time for planning vehicle routing and scheduling. Particularly, delay at customers hardly occurred in the expected shortest path.

抄録全体を表示

There is a necessity to discuss the way how to create a set of synthetic attributions as an input to a microscopic freight model. Up to present, there is increasingly the number of researches on microscopic models. Even though it is the very beginning stage of the disaggregate type travel behavior model; however, surprisingly, only very few researches are discussing on how to build up the synthetic firms properly. This paper therefore aiming at discussion about the available methods and techniques those researchers in this field has been done concurrently with the issues on data availability and to provide and discuss in details the technique used to create a synthetic firms fed to the application of a microscopic freight simulator in the study area of the Tokyo Metropolitan Area. The iterative proportional fitting (IPF) has been found the most suitable technique for our purpose.

抄録全体を表示

This paper is intended to account spatial structure effects on freight demand using aggregate data. Spatial structure affects travel decisions, if it is not included in the model, then it could lead to a biased model. Spatial structure effects are usually studied using competing destinations models, which need disaggregate data. This paper presents the adaptation of competing destinations model together with intervening opportunities models to account for spatial structure effects using aggregate data. The application of the model shows that competing effects occur at origin zone, while agglomeration effects occur at destination zones

抄録全体を表示

A method is presented to solve location problem of PSO-SOC, which is characterized as Minimum Concave-cost Multi-commodity Flow (MCMF) problem. Core idea of proposed solution procedure is the exploitation of network representation (NR). It is found that despite the solution is approached by an aggregate flow, our network representation could derive disaggregate flows, especially for those which deal with diverse cost functions among each commodity, such as production cost and revenue

抄録全体を表示

The study developed the physical distribution channel choice models reflecting decision making of the firms and studied how choice decision factors influence the selection of distribution channel. The distribution channel survey data in Korea was used to do empirical study. In creating a choice set, Korean distribution channels are classified into two main choice channels that are direct and indirect channel. Further, indirect channel is classified into other three channels according to the type of intermediate point. There are the channel through distribution center, the channel through wholesale store, and the channel through outsourcing logistics where the location of intermediate points are made by the logistics company rather than manufacturers themselves. The paper developed choice models by applying both binary and multinomial logit model with several model alternatives. The results of study show that that binary logit model seemingly satisfies distribution channel choice behaviors. The several hypothesis tests on how each factors influence the selecting choice of distribution channel are performed and discussed in the study as well.

抄録全体を表示

The transportation industries should how to know well the trade characteristic of international transportation and find their competing abilities. Therefore, this study uses the data envelopment analysis to measure competitive efficiency performances of the total technical efficiency, pure technical efficiency, return to scale and scale efficiency for international marine/air cargo of main 40 import/export trade countries during 2006. The results show the higher efficiency performance of air cargo for export/import trade countries than efficiency performance of marine cargo for export/import trade countries. The efficiency performance of export trade areas is much better than the efficiency performances of import trade areas. We also find the Pearson correlation coefficient of variables between total technical efficiency and cargo transportation fare is very high near 1, this figure show that transportation fares of trade areas are more high, the total technical efficiency of trade areas are more high.

抄録全体を表示

Abstract: More than 90% of freight movement in Indonesia is carried out by land transportation (mostly highway mode). Meanwhile most nationwide is surrounded by ocean, in which the movement can actually be carried out by sea transportation. There are Rail network in Java Island and some parts of Sumatera Island, so multimodal/inter-modality system can be applied. In fact, lack of sea and rail transportation infrastructure and management makes highway mode is still the main choice among other transportation modes. This study is conducted in relation to the impact of overloading truck in the freight transportation system in Indonesia, because the government is still allowing tolerance up to 50 percent to the normal load for each truck. This tolerance has influence to road deterioration or vehicle damage factor approximately 5 times higher. So that, overloading have a big impact to the maintenance of the road and will influence to road maintenance budget.

抄録全体を表示

The previous study aims to create a model to prepare a risk-based route network by prioritization technique with Analytic Hierarchy Process (AHP). This research proposes a method to create an effective logistics network with HazMat-risk concern using Analytic Hierarchy Process (AHP). In the research, gasoline logistics was selected for detailed study. The results show that participants rank the risk of having a road accident as the top priority, followed by the time of day, risk of carriage unit explosion, the consequences of an incident, then travel time and travel cost (28.6%, 19.4%, 17.3%, 14.6%, 5.8% and 18.3% respectively). To examine this model, data for logistics of gasoline and diesel fuel in Rayong Province (Thailand) were used for the model application. From the calculation, it was possible to reduce the composite cost priority (including risk and travel cost) HazMat logistics by approximately 10.6% in total using this model.

抄録全体を表示

Regionalization is a common trend in the world economy, which is represented by increase in intra-regional and intra-industry trade. And, Cross-Border Transport (CBT) needs to be facilitated to improve connectivity and competitiveness of the region. This study aims to show the process and factors of the CBT evolution with empirical data. The case of CBT over land between Thailand and Malaysia is focused as one of the advanced example in Asia. From the macro analysis of trade statistics, it was revealed that the CBT increases by active trades between divided production processes in general and electric machinery industries. For the microscopic analysis of companies? modal choice, Analytic Hierarchy Process (AHP) was applied. It was found that reliability of transport service was evaluated more or equally important as cost. Desirability of land transport was evaluated lower in some or all sub-attributes of reliability.

抄録全体を表示

The journey speed along an arterial road depends not only on the arterial road geometry but also on the traffic flow characteristics and traffic signal coordination. The reliability of travel time is one of the most important issues in the planning of logistical operations. The estimation of travel time information is a hard task. Most logistical models consider travel time as input data (vehicle routing problem, and some facility location problem) assuming an average travel time value based on probe vehicles, VICS, or volume-delay estimations such as BPR functions. In this paper, micro-simulation is used to incorporate the detailed dynamics of travel times into the route choice of freight vehicles as an alternative to improve the stochasticity of the travel times used by the logistical models.

抄録全体を表示

Import containers are those containers that arrive at container terminals from overseas and transship to their destination through inland transport, feeders, or wait for being picked up by consignees. Since trucks assigned by consignees arrive more or less randomly to pick up specific containers, there is much more uncertainty about which container will be picked up before another. This uncertainty results in a great deal of unproductive moves. The purpose of this paper is to provide terminal operators with a good solution to improve the container terminal operations. A booking system for import containers is designed to collect information in advance and to reduce the uncertainty of container pick-up time. This paper also analyzes the historical data of import containers to retrieve critical attributes and to categorize these containers into several groups by the predicted pick-up time priority.

抄録全体を表示

Waste recycling is environmentally and economically beneficial. The paper proposes a product recovery network for aggregates. The model deals with recycling of aggregates, thus it is a reverse logistics network design problem. London region is selected as the study area, as recycling of construction materials like aggregates are in practice there for some time, while at present, is not in popular practice in developing countries. The proposed model is multi-commodity and capacitated facility location problem which can serve as the basis for development of recycling network in Asian countries. It is formulated as mixed integer linear programming with an objective of cost minimization. It was found that transportation cost was the single most significant cost component in the reverse logistics network. The model can be improved by incorporating features like uncertainty of demand and supply of the network and monetized environmental benefits of recycling in future.

抄録全体を表示

This study attempts to identify and extract risk factors faced by Landlocked Developing Countries (LLDCs) in accessing to seaport in Transit Countries (TCs) for cargo haulage. It is widely said that counties enclosed by land without direct access to seaport are facing several challenges in high transport cost which makes economic growth of LLDCs decline. Since TCs are out of LLDCs' jurisdiction, LLDCs has no right on decision making for infrastructure planning in TCs and therefore will face several risks. Unfortunately, risks arise on the haulage is commonly recognized as quite tough task to be identified properly. In this study, we attempts to develop a prompt list which is one of the useful risk identification tools for freight transport of LLDCs for their logistics activities on the route between LLDCs and seaport in TCs.

抄録全体を表示

This study aims to develop a location choice model for distribution facilities, based on the Freight Survey Data in the Keihanshin metropolitan area, in order to analyze the probability of their location within a study area subdivided into 1-km2 zones. In this model, factors affecting the choice of the location, such as closeness to shippers and customers, accessibility to road networks and the ease of site acquisition, were employed as explanatory variables. Using this model, we attempted to quantitatively evaluate the possibility of distribution facility locations in each zone in the study area. The changes in the possibility of distribution facility locations, influenced by the planned construction of a new expressway, are also predicted.

抄録全体を表示

For pork meat was one of the highly corruptible products during logistics, the fast detection of total volatile basic nitrogen (TVBN) based on chromatic aberration method was researched and applied to observe the quality changes of warm fresh pork during logistics in winter and summer, as well as the quality changes of chilled pork and vacuum-package chilled pork during short-time and long-time logistics. The results show that the logistics quality of warm pork changes quickly, and the logistics quality of chilling pork changes slowly, while the logistics quality of chilling pork with vacuum package has least change. Low temperature logistics of fresh pork is recommended, and the quality would be best kept in the chilling pork logistics with vacuum package.

抄録全体を表示

The paper establishes a performance evaluation index system of food cold chain logistics enterprise, and then proposes a relatively simple evaluation method on the basis of entropy weight method and grey relational grade analysis. Through the method the performance evaluation can be made on the premise of objectivity, efficiency and reliability. Finally, the paper verifies the applicability of the method with an application example on supplier selection decision problem.

抄録全体を表示

To investigate temperature and quality changes of pasteurized milk during refrigerated distribution, parameters of distribution temperature and time were obtained by means of measuring the distribution vehicles. Then the total number of bacteria colony, acidity and protein content of pasteurized milk were investigated in the conditions of 8C and 10C with the control group of 2C. The results showed that the temperature of at the doorway and in the center of carriage would be lower than that of innermost, as well as quality change would have been speeded up after 12 hourshours distribution.

抄録全体を表示

The quality of banana is evaluated mainly by appearance during transportation in China. As a result of the strong subjectiveness and low accuracy of this method, disputes happen easily. The better quality test method of banana is needed urgently during transportation. Experimentation was done for finding the fast method by simulating test-bed for refrigerated transportation condition in Guangzhou University. The result was found that it is better to use combinative approach of sensory evaluation and determination of pulp hardness when testing the quality of banana. And this approach is feasible, time-saving and equipment requirement is simple and cheap.

抄録全体を表示

This paper shows how important equipment of statistics in Asian transport is for the model calculation in order to evaluate impacts of the policy to improve the environment of international freight transport. How the model accuracy is improved if some statistics are available in the model calculation, and how different the impacts to the model accuracy are according to the type of available data are discussed.

抄録全体を表示

After the conclusion of the United Nations Framework Convention on Climate Change in 1992 and the ratification of Kyoto Protocol, global concerns for environment are rapidly increasing. As it grows, global concerns about reverse logistics for waste collecting, recycling and reusing are becoming more important. In this study, current state of reverse logistics, especially waste reverse logistics, will be investigated with related legal system. Reverse logistics are recently starting to be utilized practically with the advancement of related studies. By analyzing the current state, we will study for future improvements.

抄録全体を表示

This paper highlights the significant role of a university in developing wealth and generating the economy in the move towards knowledge-based economy. The late main economic theories emphasise that intangible elements play an important part in the economic growth. In fulfilling this role, the governments are now actively promoting the university-industry collaboration in the hope that the transition of knowledge and discoveries could be passed on to the marketplace faster thus offering competitive advantage for the industry. Having considered the important role of an excellent research centre in developing the economy of a country, more research centres need to be established especially in the process of fulfilling the aspire of creating many research universities in Malaysia. This paper displays various factors that have led to the creation of the Malaysian Research Centre for Logistics and Supply Chain at the Malaysia Institute of Transport (MITRANS).

抄録全体を表示

The strategic approach for formulating a seamless transport environment, which was recommended as the "Dalian Initiatives" at the EASTS Dalian Conference, consists of: 1) Developing Asian common transport policy, 2) Encouraging the leading role of local authorities to create transport corridors / network, and 3) Establishing an Asian experts' network for formulating, implementing and monitoring the common transport policy. This paper describes the present status and major issues of transport statistics in Asia, the strategy for promoting a seamless Asia, the outline of a proposed project to study common and standardized transport statistics, and the tentative expert's network formulated as the EASTS IRG02 Bulletin Board to exchange opinions related to the project.

抄録全体を表示

In this paper we introduce our transportation logistics software, CONSLoad. This software is designated for third party logistics (3PL) providers who serve cluster industries or multi-plant manfacturing companies that needs Less Than Truckload (LTL) container trucking services. This software has been developed based on theoritical and practical researches beforehand. In order to increase their transportation efficiency, 3PL providers need to consolidate the shipment orders. However, to deal with this, the 3PL providers face two main operational problems. The first problem is about how to select the orders to be consolidated while the second problem is how to increase the space utilization of the container used. There are some aspects to concern: order specifications (volume, weight, due date, and destination city), vehicle specifications (volume, weight, costs and availability), and route specifications (inter-city distances, maximum loads allowed for each route).

抄録全体を表示

Zamiin Uud port is the southern gateway of Mongolia and a crucial intercontinental intermodal transport node, located on the conjunction of AH3. Here, rail-to-rail transshipments are necessitated by the fact that the Chinese railway operates on a different gauge than do Mongolia's Railway. Moreover, creating road-to-rail transshipments are needed by the fact that about 50 percent of cross-border freight comes from China on truck and sent to the final destination on rail. The current inadequate transport and logistics facility is one of the major constraints creating negative impacts on the economy as well as for the businesses.

抄録全体を表示

Transport allocation issues based on network analysis are something has not been resolved satisfactorily in transport planning. On the basis of the criticism to the deficits of traditional transport allocation methods, this paper raises creatively a theory and method for regional transport allocation planning fitting for China's situation. It is an integrated quantification optimal transport corridor planning theory and method with the core of traffic location, simulated decision making featured, on a basis of network analysis and considering the transport construction budget constraint from the government and operator's operating efficiency. This paper is an extraction from a study of a regional transport corridor allocation planning for western China undertaken in 2007.

抄録全体を表示

This study models the vehicle emission pricing strategy using the multi-agent system (MAS). A two-level hierarchical MAS is adopted. The manager agents are cognitive agents that give instructions while the worker agents carry out the tasks assigned. The agents can also be categorized into two groups. The agents in the air quality group continuously monitoring and collecting air pollution data at the roadside or at the buildings vicinity to the roadways. While the agents in the emission pricing group analyze the pollution data provided to decide when to activate the emission pricing. The evaluation of the proposed framework and strategy is carried out in the microscopic traffic simulation environment. An illustrative case study of a new town in Singapore is adopted. It is shown that the proposed methodology yields promising results. The air pollution level at the roadside or vicinity buildings is reduced.

抄録全体を表示

This paper investigates the joint optimization problem of land use development and transportation network improvement. A novel bi-level model is proposed to solve this problem. The upper level is to determine residential and employment developments and road link capacity expansions with a budget so that the maximal population is accommodated while satisfying user utility requirement. The accommodated population distribution by residential and employment locations and user utility are obtained by the lower level. The lower level is the combined network user equilibrium model. It models user location choice, activity pattern choice and path choice behaviors under the determined land use development and transportation network improvement in the upper level. A heuristic solution algorithm is designed for solving the proposed bi-level programming problem. A numerical example is presented to illustrate the applications and merits of the proposed model and solution algorithm.

抄録全体を表示

Intelligent Transportation Systems (ITS) are advanced technologies that have been used in large cities in developing countries to reduce traffic congestion and then increase environmental quality. Congestion causing poor traffic performance has negative impacts on environmental quality. The aim of this paper is to evaluate the impact of ITS implementation on reducing traffic congestion and increasing environmental quality, in term of fuel consumptions and pollution emissions (CO, NOx, HC) in large cities in developing countries with specific geometric and traffic behaviour. A number of ITS implementation in many large cities in developing countries is presented in this study. The results found that the impact of ITS implementation on reducing traffic congestion and increasing environmental quality is not always good especially during peak periods that usually have high traffic congestion.

抄録全体を表示

Studies have shown that a poorly designed environment can support crime. Urban design theories, for instance, associate the probability of crime occurrence with the extent by which users can look out for each other. In the University of the Philippines in Diliman, it was found that hot spots on campus, while varying in their spatial and temporal patterns, exhibit characteristics which existing literature has shown to contribute to crime. Proximity to street intersections and accessibility to public transportation were positively related to criminal activity. The study also showed results on the role of land use and natural access in the incidence of crime that differed from findings of other studies.

抄録全体を表示

Tourism Environment as comprised by Safety, Cleanliness, Barrier-free, Multilingual Writing, Communication, Price, Transportation and Electronic Service, contributes to the foreign visitors travel satisfaction in terms of convenience and comfort. In this light, this study aims to understand 1) the relative importance of the items which define tourism environment, and 2) how foreign visitors evaluate Japans tourism environment. The analysis showed that foreign visitors highly prioritize Safety followed by Transportation and Price. In addition to the foreign visitors subjective evaluation, quantitative analysis was done to certify the evaluating system of tourism environment. The result shows that Japan has strength with regards affluence to the wealth and social stability but has weakness in language.

抄録全体を表示

Remote sensing technology has developed rapidly and can be used for regional and urban planning purposes. By using satellite images, planners can obtain information on the urban form and the existing land use pattern. The emergence of land coverage pattern is related to the characteristic of the population in the area. By conducting simple modeling using socio economic data and information on land coverage, a model can be obtained which show various socio economic characteristics in urban area. The modeling can even be done to describe the density and flow of traffic in road segments of Bandung. The result of the research shows that modeling using remote sensing and socio economic data can be an alternative for the provision of faster and cheaper information.

抄録全体を表示

This study aims to identify mid- and long-term characteristic congestion trends in the urban area by classifying time-series data collected at sensor-installed points using the k-means method as which a major unsupervised clustering technique, and to support measure planning for each point using the results obtained from the classification. In this study, temporally and spatially characteristic congestion patterns were extracted from a large amount of congestion data obtained from sensors installed at approximately 2,200 locations across Sapporo urban area. As the result of this study, congestion trends and congestion-point distributions in the city were then classified into a number of patterns, allowing the selection of effective measures and the identification of targets for countermeasures.

抄録全体を表示

High-rise condominiums are again becoming popular in the Philippines because of their proximity to workplaces or schools. These are usually located in already developed areas well within the central business districts. With the current increase in the number of projects being undertaken, there is growing concern on how such will affect transportation and traffic within their influence areas. The direct influence area here is defined as the community and in the case of the Philippines this is equated with the "barangay" - the smallest formal unit of government in the country. This paper examines the potential traffic impacts of the condominiums in the context of the local EIA system. The system's inclusion of social acceptability as an essential requirement for granting approval to the project underlines the role and importance of the community in the EIA and TIA processes. Recommendations are made to improve this process and encourage public participation.

抄録全体を表示

We examined the rent capitalization of access to rail transit station in Bangkok. Because office rents are spatially autocorrelated, OLS estimation of hedonic models yields biased and inconsistent results. Therefore, we used the spatial econometric technique to remedy this problem. We measured access to rail transit stations by street-network distances from property to station. The distances were also the basis on which spatial relations among office rents were defined, and from which spatial weights matrices were constructed. We estimated spatial hedonic regressions from a sample of 85 office properties in Bangkok, using spatial lag and spatial error model structures. The results reveal that the monthly rent premium of being located nearer to a transit station by one kilometer is approximately 19 Baht per square meter, and the elasticity of rent with respect to the distance is -0.06.

抄録全体を表示

This study examined the effectiveness of information provision to tourists via mobile phones. Browser phones were used to provide the information, and a "mobile rally" was used to identify the influence that this information provision had on the travel behavior of tourists. The purpose of this paper is the acquisition of new knowledge and ideas for effective methods of information provision by applying a data mining technique to tourist travel data containing large amounts of diversified information. The major results of this study are as follows: 1) It is likely that important information can be easily extracted from data - even enormous amounts of data - through text mining. 2) It was also found to be important to provide useful information at the travel planning stage when successive information searches were conducted.

抄録全体を表示

Huge labor market which is available in the city is an important part of regional productivity. Considering this huge quantity, the enterprise can find easily appropriate worker for their activity. Labor market, as an indicator of city size, can also generate a big demand in term of good and service from producer to them as a consumer. However this huge labor market will create a little economic market if there are no sufficient transport accessibility that joins this production factor each other or between labor market and their economic activity places. The concentration of labor market needs a good mobility in order to support the regional activity and reciprocally transport accessibility produces a growth of city size. In this paper we try to introduce the relationship between effective size of labor market and transport accessibility in Surabaya, the 2nd biggest city in Indonesia.

抄録全体を表示

Tourism is one of the most dynamic and fastest growing global industries. However, tourist destinations are defenseless from unforeseeable disasters. Recovery shows a sluggish and delicate manner to which stepwise guidelines can not be formulated due to diverse internal and external environmental conditions. Thus, a systematic approach is inevitable for a tourism revival following a sudden disaster. This paper explains a systematic approach and analytical means for tourism revival strategic marketing planning with a combination of SWOT matrix and Analytic Hierarchy Process (AHP). The prioritized SWOT factors are used to formulate alternative recovery strategies using TOWS matrix. Ultimately a comprehensive priority for each strategic alternative with respect to SWOT factors was evaluated using strategic evaluation matrix. This method was applied for the tourism revival process of Sri Lanka following the 2004 Indian Ocean Tsunami.

抄録全体を表示

For constructing an evaluation framework for underground streets, FDM (Fuzzy Delphi Method) was utilized to extract criteria. The evaluation framework including three dimensions "traffic smoothness", "commercial environment", and "disaster-prevention and security", and, ANP method was used to overcome the inter-correlation of each criteria for refining the evaluation framework and also generate the weight values. Finally, based on this evaluation framework, user questionnaires were designed and surveyed in the Taipei Station Front Metro Mall and the East Metro Mall, for discovering the issues underground streets confront at present. Research results show that the planning of East Metro Mall is better than Taipei Station Front Metro Mall in the dimension of "traffic smoothness" and "commercial environment". In the aspect of "disaster-prevention and security", both these underground streets don't have enough contingency ability, and should be improved immediately.

抄録全体を表示

This paper proposes a cell emission approach to estimate CO2 emission in urban expressways. The estimation models rely on the traffic flow data collected by the traffic detectors. Two cell-based estimation models, called as the instantaneous model and the time slice model are proposed. The instantaneous model is one of the simplest methods for estimating CO2 emission. The time slice model is more accurate model than the instantaneous model because the trajectory of each vehicle in the cell is considered. CO2 emission of the Hanshin Expressway in Japan is estimated by the proposed models. As the results of the estimation, gaps between the instantaneous model and the time slice model are confirmed. The qualitative characteristics of CO2 emission in the urban expressway section are presented by a visualization method.

抄録全体を表示

The benefit of railway to the adjacent area has been well accepted; however to what extent it has influence over space is still questionable. The objective of this study is to examine the varying relationship between the property value and its determining factors such as accessibility to urban rail. A hedonic price model of medium-income-class housing in Bangkok taking into account the varying relationship (Geographically Weighted Regression, GWR) is estimated in reference to the standard regression model (Ordinary Least Square, OLS). The GWR model exhibits better performance and has revealed that the influence of urban rail transit having on the residential property (townhouse) value is substantially varying over space. This implies that urban railway has large contribution to land and property value uplift in the station catchment areas.

抄録全体を表示

This paper aims at examining sensitivity of an accessibility-based equity measure in the context of stochastic road network design problem. An equity optimization modeling framework based on bi-level programming approach is proposed where upper level problem addresses equity optimization with the constraint of network investment and lower level deals with user equilibrium model to reflect the route choice behavior with variations of link capacity improvement. An accessibility-based equity measure is specified by means of Gini coefficient. To verify the applicability of the model, an empirical study using data collected in Dalian City, China is carried out. Results demonstrate that the accessibility-based equity measure can be applied to measure the distributional difference of zonal accessibility. Comparative results also implicate that policy makers may need to trade-off among multi-objective situations involving the zonal accessibility level and the accessibility distribution.

抄録全体を表示

We reviewed the past and current land policies in Hanoi, Vietnam, and analyzed the local property prices in order to identify the main factors affecting the local land market. The institutional systems associated with the land market in Vietnam have been changing dramatically for several decades; this has created various problems, including instable property prices. The current property price evaluation in Hanoi reflects the actual demand in the market and attempts to meet the requirements of the Land Law. However, it still suffers from the lack of data and knowledge pertaining to the land market. Property prices were analyzed by using hedonic price analysis in order to understand the property price structure. Property price functions were estimated for five zones in Hanoi. The results show that various factors such as location with respect to the nearest street, number of floors, and road ratio affect the property prices significantly.

抄録全体を表示

Motorcycle ownership increase rapidly in urban and rural areas of Indonesia during rapid growth of economic development. In order to reduce motorcycle exhaust emissions, Government of Indonesia and local government of several cities enacted Inspection and Maintenance program for in-use motorcycle. We apply bivariate probit model for the likelihood of CO and HC emission violations given a set of motorcycle characteristics which obtained from on-road measurement at Jakarta, Bandung and Surabaya in 2004. Maintenance quality and running kilometer per year play a significant role in determining the probability of emission test. Furthermore, GDP per capita and urban density influences personal motorcycle mobility per capita per year at city level data. Comparing estimation results among those cities, the results of Bandung differed significantly with Jakarta. In order to pass motorcycle emission test, empirical study confirm that high mobility at low population density is better than low mobility at high density of the city.

抄録全体を表示

The demand for public services, including transportation, depends not only on the number of households but also the type and composition of each household. Therefore, it is indispensable to forecast the future spatial distribution of households by such type from the viewpoint of sustainable public management, especially with an ageing metropolitan population. However, neither traditional meso-scale land-use models nor other equilibrium type models can practically deal with the types of locators in detail. On the other hand, micro simulation models are too complicated to build or apply in practice. The aim of the paper is to build a model with a simple framework of an extended cohort-type demographic model, and location/relocation models based on the discrete choice model. The model is applied to a transportation study in Sapporo Metropolitan Area and the results of future simulations suggest various implications which depends only on a transportation model, can never provide.

抄録全体を表示

We investigated the relationship between railroad station and areal population density in Japan. A cross-sectional analysis and a series of longitudinal analysis on the station development and changes in population density are conducted. The overall trend of higher density near the station is observed with a relatively high level of variance. Also, it is pointed out that railroad service is necessary for dense inhabitation while it is not sufficient. Further, the longitudinal analysis confirmed that the station development induced the population density growth within 2 to 3 km from the station. A detailed analysis proposed that while the difference of density growth relative to the regional difference or proximity to the station is not observed, the collaborative development of railroad and housing would have a largest potential in improving population density.

抄録全体を表示

Fringe area development or sprawl is a phenomenon that will continue to go on in the process of urban development. Not ready of spatial planning instruments in dealing with the problem has exacerbated the transportation problem in is connecting corridor, such as the problem of congestion. One effort that can be done is to conduct the internalization of the orientation of the trip in the fringe area, so that the interaction of the fringe area with its core city can be reduced. The objective of the research is to obtain description on the activities of settlement spatial pattern represented by perception of residential choice and facility completeness, and its correlation with the activities pattern of population movement

抄録全体を表示

Impacts on land use distribution of a metropolitan area by a policy measure such as development of a road network or a railway system are increasingly complicated and more detailed analysis is required. A micro simulation system is a very effective tool to analyze these impacts in detail. The current paper develops a microsimulation model for representing demographic distribution on a hypothetical metropolitan area by using parameters estimated by the real data of the Person Trip Survey and its accompanied survey in 2006 which investigate individual location choice behavior. This model shows that the microsimulation model is able to forecast various possible demographic distributions as well as the most likelihood one. Therefore, this tool is useful in managing various risks which will occur there by foreknowing what will happen from the results of this model.

抄録全体を表示

In Japan, Agency of Tourism is founded in 2008 in order to correspond to increase of leisure demand due to the retired generation of domestic Japan. The improvement on transportation facilities enables to tour several destinations in two or three days, so then the various types of tourism can be realized. This study estimates the tourism demand model considering trip generation and the passenger distribution simultaneously. By using the disaggregated data with augmentation coefficient including whole regions' samples, important features of tourism demand in Japan such as relative importance among the tourism resource, the possibility in corporation among the resource, and the influence of demographic characteristics, are clarified. The effect of the improvement in level-of-service of expressway is simulated.

抄録全体を表示