A fully green signal is called an Approach signal. http://commons.wikimedia.org/wiki/File:Amtk_Keystone_PCL_signal.jpg
A signal indication is what the signal indicates us to do.
The indication of this green signal is to go ahead or proceed. http://commons.wikimedia.org/wiki/File:Nec-nb-pjc.jpg
Here is some information on Railroad rules, signaling, and operations.
Printable study note cards for BNSF’s general code ofoperating rules (GCOR) along with information on signals. http://commons.wikimedia.org/wiki/File:BNSF_1287.jpg
This website contains examples ofquestions that are on the locomotive engineer exam.
The engineer signal exam is a major part of the final comprehensive engineer exam. http://www.flickr.com/photos/rileyroxx/162970439/sizes/l/in/photostream/
But with practice and studying, the signals will become second nature. http://www.flickr.com/photos/redarrow101/5200218176/
Resources• Federal Railroad Administration. Retrieved September, 28, 2012. From http ://www.fra.dot.gov/• BNSF GCOR for final. Retrieved September, 28, 2012. From http://quizlet.com/9904379/bnsf-gcor-for-final-flash-cards/• Reading comprehension test for train crews. Retrieved September, 28, 2012. From http://www.unionpacific.jobs/careers/explore/train/reading_sample.shtml• Railroad signals of the US. Retrieved September 28, 2012. From http://www.railroadsignals.us/basics/basics4.htm• Examination for Locomotive Engineers. Retrieved September 28, 2012. From http://www.catskillarchive.com/rrextra/CHAPT27.Html