Yasunori Muromachi

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International Conference on Traffic and Transportation Studies (2nd : 2000 : Beijing, China). Traffic and transportation studies : proceedings of ICTTS 2000 | 2000

Nobuaki Ohmori; Yasunori Muromachi; Noboru Harata; Katsutoshi Ohta

This paper describes how travel behavior data collection systems were developed using Global Positioning System (GPS), personal handyphone systems (PHS) (also known as cell phones), and geographic information systems (GIS). It then examines the effectiveness of the data collected by these systems and their applicability to travel behavior surveys.

International Conference on Traffic and Transportation Studies (ICTTS) 2002 | 2002

Nobuaki Ohmori; Yasunori Muromachi; Noboru Harata; Katsutoshi Ohta

This paper presents an analysis of day-to-day variations of travel time on road network using Global Positioning System (GPS) and Geographic Information System (GIS). Data collection system was developed using GPS connected with notebook PC, which can capture vehicle movement of multiple days. One-week vehicle travel surveys using the system were conducted for commuting drivers in local cities. Methods for handling GPS data on GIS platform were summarized, and day-to-day variations of travel time and speed were analyzed in the study area. Although positional data are very promising, usefulness in travel time studies depends on the process of data handling and the quality of GIS database.

Selected Proceedings of the 9th World Conference on Transport ResearchWorld Conference on Transport Research Society | 2001