| Title | Highway Travel Time Survey(2007) |
| Dept | Transportation Technology and Information Division |
| Year | 2008 |
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| Summary | This project employed the technology of a probe car with global positioning system (GPS)surveying equipment of to manually record travel time and travel speed data of all national highways (freeways), provincial highways (expressways included), county highways, and the connectors of freeway/expressway interchanges, which were completed before October 2007. The total length of the survey routes is about 10,393 kilometers. The survey rounds were six for each highway (two-way included), and the running time survey time period was classified into three types based on traffic and highway characteristics of each highway, as follows: The weekday peak-hour period of metropolitan area: The total survey rounds of each highway were six for the morning and afternoon peak-hour. The weekday off-peak period of suburban area: The total survey rounds of each highway were six during the off-peak period. The holiday period of the scenic area highway and the intercity long-distance highway: The total survey rounds of each highway were six. In addition to the results of travel speed statistical analysis, the survey results were transformed into a GIS database, which could be used to perform the analysis of equal travel time contours, speed classification, the shortest path, and travel time between any two nodes. Also, the database was used to update the link database of the Traffic Road Network Digital Atlas of IOT. |
| Post date | 2008/07/14 |
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