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An Integer Programming Model for Locating Vehicle Emissions Testing Stations


  • Arthur J. Swersey

    (Yale School of Organization and Management, Yale University, New Haven, Connecticut 06511)

  • Lakshman S. Thakur

    (Operations and Information Management Department, School of Business Administration, University of Connecticut, Storrs, Connecticut 06269)


Connecticut and other states not in compliance with federal air quality standards are required to implement a motor vehicle inspection program to test vehicles for pollutants---hydrocarbons and carbon monoxide. The problem is to determine the number, size, and locations of stations given constraints on the maximum travel distance from each town to its nearest station and the average waiting time at a station. In this paper we use simulation to find the maximum allowable arrival rates (in vehicles per hour) of stations of different sizes and formulate the station location problem as a set covering model. We generate a range of solutions through sensitivity analysis, varying both the average waiting time and maximum distance constraints. Comparing the current configuration of stations in Connecticut to our integer programming solutions we find that the integer programming approach reduces the objective function by at least $3 million. The current configuration has more stations than the IP solutions but they are not as well distributed.

Suggested Citation

  • Arthur J. Swersey & Lakshman S. Thakur, 1995. "An Integer Programming Model for Locating Vehicle Emissions Testing Stations," Management Science, INFORMS, vol. 41(3), pages 496-512, March.
  • Handle: RePEc:inm:ormnsc:v:41:y:1995:i:3:p:496-512

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    Cited by:

    1. Wright, Christine M. & Mechling, George, 2002. "The importance of operations management problems in service organizations," Omega, Elsevier, vol. 30(2), pages 77-87, April.
    2. Bapna, Ravi & Thakur, Lakshman S. & Nair, Suresh K., 2002. "Infrastructure development for conversion to environmentally friendly fuel," European Journal of Operational Research, Elsevier, vol. 142(3), pages 480-496, November.
    3. Daniel, S. E. & Diakoulaki, D. C. & Pappis, C. P., 1997. "Operations research and environmental planning," European Journal of Operational Research, Elsevier, vol. 102(2), pages 248-263, October.
    4. Amini, M. Mehdi & Retzlaff-Roberts, Donna & Bienstock, Carol C., 2005. "Designing a reverse logistics operation for short cycle time repair services," International Journal of Production Economics, Elsevier, vol. 96(3), pages 367-380, June.
    5. Grossman, Thomas A. & Brandeau, Margaret L., 2002. "Optimal pricing for service facilities with self-optimizing customers," European Journal of Operational Research, Elsevier, vol. 141(1), pages 39-57, August.
    6. Troncoso, Juan J. & Garrido, Rodrigo A., 2005. "Forestry production and logistics planning: an analysis using mixed-integer programming," Forest Policy and Economics, Elsevier, vol. 7(4), pages 625-633, May.


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