17,394
edits
Changes
Jump to navigation
Jump to search
Line 82:
Line 82: +
no edit summary
* [http://www.fra.dot.gov/us/content/1265 Federal Railroad Administration » press room » positive train control]
* [http://www.fra.dot.gov/us/content/1265 Federal Railroad Administration » press room » positive train control]
* [http://parovoz.com/spravka/gauges-en.php Railroad Gauge Width], a comprehensive list of railway gauges and countries where they are and were used.
* [http://parovoz.com/spravka/gauges-en.php Railroad Gauge Width], a comprehensive list of railway gauges and countries where they are and were used.
* [http://tigger.uic.edu/~rjensen/railroad.htm Guide to Railroad History online]