Transportation Infrastructure Maintenance Management: Case Study of a Small Urban City

A transportation infrastructure maintenance management system (TIMMS) for a small urban city is developed. Uintah, Utah, year 2005 population 2,000, is studied. As of Fall 2001, this suburb of the Salt Lake City–Ogden urban area featured 12 km of paved roads, 133 traffic signs, 18 street lights, pavement markings, and other transportation infrastructure. A part-time city engineer was responsible for maintaining the transportation and other infrastructure. A formal TIMMS was not in place. A TIMMS emphasizing preventive maintenance on all infrastructure, along with corrective maintenance on all pavements, was estimated to require about 79% of the city engineer’s time, at an annual cost of about $88,000, or $7,330∕km of road (2002$). About 75% of the expenses would be devoted to pavement preservation. The cost would exceed the city’s estimated transport maintenance budget ($55,775) by about 58%, while the time required of the engineer might exceed that available. A simple linear programming TIMMS formulation...