What are the features of India's longest expressway project?

The 1,350-km-long Delhi-Vadodara-Mumbai Expressway is India's longest expressway project. The ₹1 lakh crore expressway will reduce Delhi-Mumbai travel time from 24 hours to 12 hours. Along the expressway, people will cross six states/UTs: Delhi, Haryana, Rajasthan, Madhya Pradesh, Gujarat & Maharashtra. Commuters will cross 30 toll plazas on the expressway with a wait time of less than 10 seconds.