Abstract
The Environment Protection Management Systems (EPMS) is part of the UTMS advanced traffic control system formulated by the Japanese National Police Agency. The purpose of the EPMS is to reduce roadside pollution caused by automobile traffic, with optimizing the deployment of signal controls, providing appropriate traffic information, guiding motorists to alternative routes, and using other effective tools. General field experiments demonstrated a system for measurement and control that reduced emissions of NOx. Based on these results, signal control techniques and simulations to calculate emission volume were developed. (A*)