The Coastal Road is an under construction 8-lane, 29.2-km long grade separated expressway that would run along Mumbai's western coastline connecting Marine Lines in the south to Kandivali in the north. It is projected to be used by 130,000 vehicles daily, and is expected to reduce travel time between South Mumbai and the Western Suburbs from 2 hours to only 40 minutes. The estimated cost of the project is ₹12,000 crore (US$1.5 billion). Its first phase, which is under-construction, is a 9.98 km section from Princess Street flyover to the Worli end of the Bandra-Worli Sea Link. From Wikipedia