GLOSA (Green Light Optimal Speed Advisory) offers drivers visual guidance about when a traffic signal is expected to change state in the form of speed advice. If the advice is followed, the driver will safely traverse a traffic signal junction without stopping, harshly accelerating or decelerating. 

GLOSA is a Day 1 Cooperative Intelligent Transportation System (C-ITS), making more efficient use of existing networks by using connectivity and technology to improve journey times and achieve better environmental outcomes i.e., reduced tailpipe emissions and lower fuel consumption.

In the paper, you’ll find insights into the challenge that deployment of GLOSA poses:

• Is GLOSA likely to cause another unwanted in-vehicle distraction to drivers?
• Can open-source software modelling be used to quantify the air quality and fuel consumption benefits, and is this valid for the vehicles on our roads today?
• How will the potential vehicle emissions savings differ over varying topography?

Download the paper that was presented at the ITS European Congress.