There are several reasons why states should prioritise carpooling. One, it can make mobility affordable for many, especially when public transport options are inadequate in many cities. Two, carpooling can reduce air pollution levels. Bengaluru, for example, has a population of 11 million people and 12.5 million vehicles. At least 40% of PM2.5 comes from vehicular traffic. The city’s pollution levels exceed the limits in the National Ambient Air Quality Standards, making it one of 131 ‘non-attainment cities’ identified under the National Clean Air Programme. This is jeopardising the health of citizens. Three, without aggregating trips, Bengaluru will be perpetually logjammed, which would impact work productivity. A recent study found that the city lost 7.07 lakh hours of productivity a year due to time spent negotiating traffic.
With challenges like air pollution a reality, there is an urgent need to minimise fossil fuel use, reduce emissions and improve energy efficiency. Along with an efficient carpooling system, Karnataka and other cities must focus on setting up of a predictable, accessible and affordable integrated mass public transport system, and pedestrian-friendly infrastructure that promotes walking. Notions of carpooling being stopped must be stopped in its tracks.