Haven Avenue is a six-lane divided arterial with freeway interchanges at Interstate 10 and Interstate 210 in the City of Rancho Cucamonga.

Background. In November 2008, the City began construction of the Haven Avenue Grade Separation Project.  The primary goals of this project were two-fold: to improve traffic safety and to improve pedestrian and vehicular circulation. First, elevating the railroad tracks served to separate vehicles and pedestrians from the growing number of freight and commuter trains crossing Haven Avenue, thereby eliminating the potential for vehicular / pedestrian and train collisions.  Second, traffic delays cause by each passing train would also be resolved.  About 20,000 vehicles and 40 trains crossed this location daily, which caused vehicular traffic to idle about 64 minutes daily.  Eliminating idling time at this location has saved about 2.5 tons of CO2 from being released into the environment each year.

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