A new plan in Kansas City for the downtown Front Street approach to Interstate 435 will involve driving on the left side of the road. Traffic engineers trying to ease jams and reduce accidents came up with the idea. It will be the first of its kind in America. Drivers will reach a traffic signal, then be guided to the opposite side of the road, which will be divided by a concrete median with glare screens to minimize the disorienting sight of oncoming cars to the right. After about 650 feet, motorists reach another traffic signal and are returned to the right side of the road. Ramps before the first and second lights will allow motorists to enter I-435. The design spares motorists from left turns into oncoming traffic to reach the highway.