Signal Phase and Timing Broadcasts for Eco-Driving and Priority Green Corridors
Connecting municipal traffic controllers to V2I gateways broadcasting SAE J2735 SPaT and MAP messages to enable autonomous speed synchronization.
Green Light Optimal Speed Advisory (GLOSA)
Autonomous vehicles modulate velocity to arrive during green phases without stopping, slashing energy consumption and brake wear by up to 25%.
- 10 Hz continuous SPaT broadcasting over 5.9 GHz PC5 and DSRC.
- Lane-specific signal state mapping with countdown timers.
- Emergency vehicle priority preemption requesting instantaneous green light.
- 25% reduction in fleet stop-and-go energy losses at urban intersections.
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