Off Road Routes Downloadable tracks and lanes suitable for 4x4 vehicles documented with photographs, GPS, descriptions and distances, graded by difficulty.
	Should Cities Convert One-Way Streets to Two-Way? Commentary by Reason Public Policy Institute. Includes some history of one-way street creation.
	Slashdot: Supercomputers Used to Study Urban Traffic A link to an article and discussion about the science of traffic.
	Trafficware Software Download demo software for simulating intersections, traffic signals, and traffic flow.
	Traffix Traffic simulation software demo.
	World Highways Magazine News on designing, construction, financing, maintaining and operating major roads worldwide.

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