Next week, the city of Boulder and CU Boulder police departments will step up enforcement of the city’s traffic laws in and around several of Boulder’s top locations for motor vehicle collisions involving a bicyclist or pedestrian. The Heads Up Boulder crosswalk safety campaign runs Monday, Sept. 25, through Friday, Sept. 29. Officers from both agencies will be at intersections around the CU Boulder campus, joined by Heads Up ambassadors who will distribute educational material, coupons and small gifts to reinforce the safety message.