https://www.wiomax.com/traffic/ The core control engine of smart & scalable urban traffic control (surtrac), invented by Xiao-Feng Xie, et al.
A decentralized, real-time, intelligent traffic control system applied for the urban signal network in downtown Pittsburgh, PA. Only six of them are adaptive traffic signals, others are still controlled using fixed time-of-day signal timing plans that was optimized by SYNCHRO.
[1] X.-F. Xie, et al. Schedule-driven intersection control. Transportation Research Part C, 2012, 24: 168-189.
The coordinated version deployed in the real world could be viewed at: https://www.youtube.com/watch?v=8LSmeKeKzr0
Post time: Mar-10-2017