Stretched Intersection and Signal Warning System

摘要

One embodiment of a traffic intersection lane and signal system for improving intersection capacity and safety. Through traffic is stopped by signal means (22) a distance away from the intersection. Turning traffic on turn lanes (10) and (14) have an option to proceed and queue on lane segments (12) and (16) respectively, then complete the turning maneuvers during phase φ7 and phase φ1 respectively. The through traffic released from signal means (22) arrives at the intersection at the time opposing left turn phase φ5 expires and through phase φ6 starts, and passes through the intersection without significant delay. A set of detectors (50) and signal means (52) located before the presignal help drivers to make stop decisions, and another set of detectors (54) and signal means (56) located before the intersection provide last second warning to drivers who ran the red light at the presignal. This system accommodates left-handed or right-handed driving conventions.

主权项

1. A traffic intersection lane and signal system comprising:
a) a signal controlled traffic intersection, b) one or more groups of traffic to discharge from said intersection, c) one or more other groups of traffic to discharge from said intersection, d) one or more mixed use lane segments adjacent to said intersection, and e) means for using said one or more mixed use lane segments to discharge said one or more groups of traffic and said one or more other groups of traffic alternately during each repeating signal cycle,whereby said traffic intersection lane and signal system effectively utilize roadway surface to increase intersection capacity and reduce delay.