Abstract
The study on motorcycle behavior is important to understand its characteristic and system for ease in policy decisions related to the vehicles. One of the purposes of motorcycle usage is for the delivery of documents or commodities. This study aims to investigate the characteristics and system of delivery motorcycles. Delivery motorcycles are examined from two approaches: interview and traffic surveys. Delivery motorcycle drivers were interviewed about the characteristics of firm, driver, and the movement of vehicle. Traffic survey is another approach to countercheck the results. The survey results imply that the total vehicle kilometer traveled of delivery motorcycles for the entire Bangkok is almost 4.6 million vehicle-kilometers per day. More than 80 percent of delivery motorcycles are used for delivery documents. Among businesses, banks contribute the greatest share of the usage of motorcycles for delivery.
