Impact of introducing Signal Recognition Enhancement System on traffic flow at signalized intersection

The Signal Recognition Enhancement System or SRES is one of practical ITS which is expected to avoid rear-end collisions at a signalized intersection by providing signal information to a vehicle and/or a driver before reaching an intersection. This system is also expected to suppress the unnecessary fuel consumption and reduce CO₂ emissions. This paper aims to evaluate the impact of the SRES which will be installed at signalized intersections. We develop the micro traffic simulation model which includes the behavior of a driver with/without SRES to estimate the impact SRES on the traffic flow around an intersection. We employed the time integral of difference of space distance and stopping distance or TIDSS as the indicator for measurement of safety, while we employed the equations to calculate fuel consumption and CO₂ based on an average velocity. Numerical simulation showed that SRES might help to reduce collision, fuel consumption and CO₂ emissions at signalized intersections.