rebound effect John Glen Wardrop Marchetti's constant, a corollary of which is that decreasing congestion may increase the distance people are willing to commute, thereby increasing the traffic burden Mohring effect References Sources Mogridge, Martin J. H., Travel in towns: jam yesterday, jam today and jam tomorrow? Macmillan Press, London, 1990. Lewis D. (1977), Estimating the influence of public policy on road traffic levels in greater London. J. Transport Econ. Policy, 11, pp. 155–168. Clément, L., La conjecture de MJH Mogridge : test sur l’agglomération de Lyon (PDF), Cahiers Scientifiques du Transport (30), 1995. Afimeimounga, H., Solomon, W., Ziedins, I. The Downs–Thomson Paradox: Existence, Uniqueness and Stability of User Equilibria, Queueing Systems: Theory and Applications archive, Volume 49, Issue 3–4 (January 2005). Mogridge, M. J. H., Holden, D. J., Bird, J. and Terzis, G. C. "The Downs–Thomson paradox and the transportation planning process". International Journal of Transportation Economics, 14, pp. 283–311, 1987. Road transport Transport economics