Namerikawa was a stage in Kanazawa-Han. Ota-ya was a lodging used by feudal lord for stay and rest in Kanazawa-Han during Edo-Era. Through the examination of historical materials, following results were ascertained;
1) In 1625 the house of Kirisawa family was designated to Ota-ya.
2) In 1690 the designation was canceled and the house of Kirisawa family became Honjin.
3) Plan of Ota-ya in Namerikawa was simlar to plan of the house of Kirisawa family in 19th century.

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道路側面のケンタッキーブルーグラス・オーチャードグラスなどを主体とする芝地の刈払い労力を軽減しようとして、草丈抑制剤モルファクチン・MH混合剤 (CF125エース) の処理方法を検討した。
時期は、早春の草丈5～10cmの頃が最も効果的で、これより遅くても十分な効果がえられないし、これより早い時期 (前年秋、融雪直後) に処理しても、一時的な剤制効果しか期待できない。薬量は2kg/10a処理すれば一シーズン刈払いをしないですむ。刈払後処理も効果があり、草生密度が低ければ1.5kg, /10aの薬量でもよい。
現在のところ、薬価が高く、刈払いコストとくらべてもあまり有利ではないが、高速道路、ガードレールなど構造物周辺のような刈払いが困難なところに適用の場面がある。
毒性はきわめて低いが、散布にあたっては他の植物に飛散しないように注意しなければならない。

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Ota-ya and Oyado were lodgings used by feudal lord for stay and rest in Kanazawa-Han during Edo-Era. Through the examination of several historical materials on such lodgings especialy in 1710's or 1720's, following results were ascertained;
1)Most of Ota-yas were built before 1670's and abolished before 1730's.
2)Ota-ya was built at the public expense but Oyado was built at owner's expense.
3)In some cases the site and building of Ota-ya were succeeded to Oyado and in some cases vice versa.

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Lodgings such as Ota-ya, Oyado and Honjin were used by feudal lord for stay and rest in Kanazawa-Han and Toyama-Han during Edo-Era. Through the examination of several historical materials, following results were ascertained;
1)These Lodgings were classified into 2 types by site and plan.
2)These Lodgings were classified into 2 types by whether aid existed by Han or not.
3)In some cases existence of aid by Han changed during Edo-Era.

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Urayama and Mikkaichi were stages in Kanazawa-Han. Ota-ya and Oyado were lodgings used by feudal lord for stay and rest in Kanazawa-Han during Edo-Era. Through the examination of historical materials, following results were ascertained;
1) Before Ota-ya in Urayama and Ota-ya in Mikkaichi were designated to Ota-ya, these buildings had been used by lord of Kanazawa-Han.
2) In Urayama and Mikkaichi, 2 or 3 lodgings such as Ota-ya and Oyado were built and used by specific lord according to the characteristics of the lord.
3) Siteplan and the relation between site and road were common to Ota-ya and Oyado in Urayama and Mikkaichi

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Ota-ya in Higashi-Iwase was a lodging used by feudal lord for stay and rest in Kanazawa-Han and Honjin in Toyama was a similar lodging in Toyama-Han in Edo-Era. Through the examination of historical materials, following results were ascertained;
1)Ota-ya in Higashi-Iwase and Honjin in Toyama were both composed of two parts, rooms for lord and private rooms for dweller.
2)Honjin in Toyama had two sets of rooms for lord. Such a plan was uncommon among lodgings used by feudal lord in Japan in Edo-Era.

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The purpose of the paper is to analyze the traffic congestion in the mass transportation system in Tokyo Metropolitan Area. An econometric model was constructed to explain the changing trends of distancial distributions of population, employment, production, land price and traffic to Central Business District, and estimated by the pooling data of 6 subareas and 7 years. The simulation showed a continuous tendency of double-ring growth pattern of suburb area, and increasing traffic congestion to the future. The analysis also revealed that the social cost caused by traffic congestion reached to 1.1 billion yen for 137, 000 persons. This social cost is estimated to increase to 4.6 times in 1970-80 based upon real wage increase, increase of congestion, increases of traffic time and traffic population. The benefit-cost ratio of past transportation investment was revealed as quite high based upon the analysis which suggested that the initial investment was covered by 12 years using 10 percent of discount rate. The analysis also revealed the inverse effects of transportation investments to increase the transportation capacity and to shorten the traffic time upon the velocity of urban sprawl. The analysis as a whole strongly suggests the urgent needs to improve the mass transportation system to mitigate the accelerated congestion in the future.

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