"Additional right-of-way will be required to widen the existing highway to either the north or to the south. The new I-70 will offer three 12-foot lanes in each direction, providing increased capacity and improved safety. The highway will have 12-foot shoulders to provide a safer driving experience, and to offer an emergency lane when an incident closes any portion of the main line. For most of the route, opposing traffic will be separated by a larger median. Not only does this protect motorists from crossover accidents, it also provides room for future expansion to the inside and a corridor for future transportation options."