Uber shares data treasure trove with cities to cut congestion

Uber has made its vast trove of traffic data available to city planners so they can use it to reduce congestion. The ride-sharing company has collected information on more than two billion journeys in around 450 cities, and is providing it free so that planners can see which kinds of journey are most congested, and allocate resources accordingly. The company has traditionally been unwilling to share information with authorities.