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An Introduction to Matrix Theory for Passenger Trains

August 31st, 2000 Comments off

Dr. Adrian Herzog, VP Research, URPA

The potential ridership on any given transportation system can be accurately modeled mathematically. We begin by modeling a single route going from location A to location B. Such a non-stop system models non-stop long distance air service and express non-stop rail service. Only two “routes” are possible in such a system, from A to B and from B back to A. One might argue that this represents only one round trip market. However, since the demographics of A and B are often quite different, each direction represents a different market to be exploited.

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Amtrak II: The Basic Plan

October 26th, 1999 Comments off

Based on Adrian Herzog’s post to the All-Aboard mailing list, 26 October 1999


There have been calls for a unified action that all rail supporters could get behind. This is it. (Anyone who agrees, please write your congressperson.)

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Towards an Amtrak-free National Network

December 21st, 1996 Comments off

Dr. Adrian Herzog, RailPac and URPA

  • URPA: United Rail Passenger Alliance
  • the author acknowledges the technical assistance of the Surface Transportation Systems Institute in the preparation of this paper.

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