Could the Air Quality Index of Cities be Improved with Better Policies on Traffic Signal Timings?

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India has been consistently topping list of cities with the worst air quality in the world with Ghaziabad, a satellite city of the capital New Delhi in northern Uttar Pradesh state, ranked as the world's most polluted city.

 

In the Indian context, improving the efficiency of traffic signals is expected to improve the pollution at signalized intersections by 20-30% in most situations, due to reduction in fuel consumption due to vehicle idling.

 

The impact of traffic engineering on reducing emissions is notable. Implementing sustainable practices to traffic cycle lengths, pedestrian walk cycles, bus stop locations aid traffic police in India who bear brunt of the pollution throughout the day which is a result of vehicle idling.

If governing bodies and citizens were educated about the proportion of improvement better traffic signaling could provide for their cities through visual representation, would it impact policy-making?

 

This project aims to make the results of a study on this very impact accessible and understandable to the city dwellers and policy-makers to promote change in the direction of enhance air quality.

 

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