How Technology is Revolutionising Intersection Performance Evaluation

Highway Capacity Manual (HCM) traditionally proposes an 8-step method to evaluate the performance of signalized intersections. This evaluation begins from the calculation of the saturation flow rate all the way to estimating the Level of Service (LOS) of the intersection. This method makes use of a volume-delay function based on a traffic simulation model developed in early 1970s. The HCM and similar methods although provide an “estimation” of the intersection performance, there are several disadvantages associated with it that can be also the sources for inaccuracies:

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Can Autonomous Vehicles Kill Traffic Lights?

Improvements in the sensor technology and the emergence of connected vehicles and wireless communication have provided a base for the development of a new generation of vehicles with the ability to navigate on roads without human intervention. Autonomous vehicles use different sensor technologies such as LIDAR, ultrasonic, etc. to mimic the inception of human drivers of the surrounding environment in order to navigate on streets.

 

Many applications have been envisioned for autonomous vehicles. Among those, the Autonomous Intersection Management (AIM) has received special attention. 

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