05109343 is referenced by 39 patents and cites 10 patents.

A braking distance verification system is disclosed which makes use of a specially designed pulse to voltage converter circuit and a portable computer-based data acquisition system to measure grade, speed, and distance information of any rail vehicle. The preferred embodiment of the device is particularly adapted for mass transit systems. It provides a method and apparatus for physical verification, under actual test conditions, that an adequate braking distance has been provided in each block of a signal block design system. The portable system may be used with any vehicle braking system which provides an electronic wheel tachometer or equivalent, or may utilize a portable doppler radar if tachometer information is not available.

Title
Method and apparatus for verification of rail braking distances
Application Number
7/534050
Publication Number
5109343
Application Date
June 6, 1990
Publication Date
April 28, 1992
Inventor
Raymond J Budway
Pittsburgh
PA, US
Agent
Buchanan Ingersoll
Assignee
Union Switch & Signal
PA, US
IPC
B61K 9/08
B61L 3/00
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