The primary road network in Mexico City is to be repaved over a three year period at a cost of US$185 million. The local public works and services department is pushing ahead with the highway maintenance program, reports Business News Americas. The work will focus on the city''s Paseo de la Reforma, which extends for some 411km of its 913km primary highway network. Work will cover the Paseo from its intersection with the Anillo Periférico beltway to its intersection with the México Toluca highway, as well as between its intersections with the Hidalgo and Basílica avenues. Some of the rebuilding work is required as the Paseo de la Reforma''s central lanes were initially built on low-quality terrain, with no reinforced concrete, some 40 years ago, which has resulted in problems such as fractured concrete and subsidence. New, high-quality asphalt will be laid along the road, while the work also entails repositioning and repairing lights, maintaining green areas, building pedestrian bridges, and signaling improvements. The first phase, covering the Paseo''s intersection with the Anillo Periférico to the Paseo de Bucareli, is already 85% complete.