Japan (10 unique benefit summaries found)

An evaluation of electronic stability control (ESC) and crash data from the Institute for Traffic Accident Research and Data Analysis indicated that the crash rate for single-car crashes and head-on crashes decreased by about 36 percent where ESC was expected to be effective.(18 February 2005)

In Japan, a guidance-vehicles system designed to lead traffic through heavy fog on freeways was projected to have a benefit-to-cost ratio ranging from 1.7:1 to 2.1:1.(6-9 November 2000)

A bus priority system in Sapporo City, Japan reduced bus travel times by 6 percent, decreased the number of stops by 7 percent, and reduced the stopped time of buses by 21 percent.(1999)

In Japan, real-time alternative-route travel time information posted on dynamic message signs contributed to a 3.7 percent divergence rate during periods of congestion, saving detoured motorists an average of 9.8 minutes per vehicle.(12-16 October 1998)

Impacts on Traffic Congestion by Switching Routes and Shifting Departure Time of Trips(12-16 October 1998)

In Japan, upgrading traffic signals improved travel times by 17 to 21 percent and increased average speed by 19 to 21 percent.(March 1998)

Installing new traffic signals in Japan reduced crash frequency by 75 to 78 percent and upgrading existing traffic signals reduced accidents up to 65 percent.(March 1998)

The Japanese Vehicle Information and Communication System (VICS) began operations in Spring 1994 and according to the results of several road tests, the amount of time saved with the dynamic route guidance system in VICS was approximately 15 percent.(January 1998)

In Japan, a real-time incident detection and warning system installed on a dangerous curve on the Hanshin Expressway decreased the rate of secondary crashes by 50 percent.(October 1997)

In Japan, a field test found that conventional toll collection takes an average of 14 seconds per car, while electronic toll collection takes only 3 seconds per car. (October 1997)