请大家集思广益翻译成英文

I units to build roads and cultural ecology, with the focus on the comprehensive strengthening of the existing highway daily conservation, and ensure the traffic flow and clean the United States. While improving the signs, marking, strengthening Green, conservation and maintenance of bridges on the basis of the tunnel, to 106 lines, with the focus on additional city with traditional cultural and economic characteristics of the signs, sculpture, optimizing the current environment.