446 Railroad Definitions
... complete list of railroad gauges. Gauge Cocks ... with trainman seniority. Grade Resistance
Resistance that ... term for a clear signal. Grip Trainman's suitcase ...
Description: The most complete online railroad glossary: more than 400 entries. Contains American, British, South-Afri...
Category: Reference > Thesauri > Specialized
pavel.physics.sunysb.edu/RR/RailroadDefinitions.html - 90k - Cached - Similar pages

San Diego Railroad Museum Railroad Defintions
... A yard engine. Grade Resistance Resistance that ... term for a clear signal. ... Highball A
signal given to proceed ... Hoghead, Hogger A railroad engineer Horsepower per ...
www.sdrm.org/faqs/defs.html - 40k - Cached - Similar pages

Mack's Railroad and Railfan-Related Links
... Fe in Oklahoma; Sand Patch Grade Message Board; San Francisco ... Game; The Train Store
- Railroad Art by Scotty; ... Videos: Clear Signal Video - Railroad Video ...
www.edisaurus.com/trains/train_links.htm - 83k - Cached - Similar pages

RAILROAD DEFINITIONS
... Dancer A railroad track worker ... 100" Grade Resistance ... a clear signal. ----
Highball ...
www.spikesys.com/Trains/rr_defns.html - 25k - Cached - Similar pages

New York City Subway Signals: Single Line Diagrams
... see the World's Fair Railroad section. ... signal, and is never clear. Its stop is shown ... Note
that the home signal 10 has an "S ... for the 2-shot grade time control of ...
www.nycsubway.org/tech/signals/signotation.html - 19k - Cached - Similar pages
"Positive" is in parens because it doesn't appear as part of the phrase, at least not according to the several railroad-language web sites I checked:

San Diego Railroad Museum Railroad Defintions
www.sdrm.org/faqs/defs.html

Mack's Railroad and Railfan-Related Links
www.edisaurus.com/trains/train_links.htm

RAILROAD DEFINITIONS
www.spikesys.com/Trains/rr_defns.html

HTH,
HC