Despite heat-induced atmospheric distortion, with digital camera at max zoom
in the past we could look almost a half mile north back toward Jessup Station to
find the old color position light signals. Since then CSX has replaced all but a
The bridge in the distance carries MD 175 over the tracks.
The amber signal seen here means "Medium Approach Medium", that is, proceed
at medium speed approaching the next signal at medium speed.
Reader Ralph Hough wrote:
"hey steve. i am a conductor for csx and i was looking at your website.
very nice site i thought. i really enjoy learning the history of the b&o.
one thing i need to bring to your attention is mile 7.2 picture (signals) the
amber signal is 'approach' not 'medium approach medium'. i followed your
link to mikes signal page and he has it wrong also. again, very nice
website. i will be stopping back frequently. thanks...."
Ex-B&Oer Mike Blair added detail:
"Conductor Hough is quite correct that the one displayed in your picture
is an approach signal and would require The engineer to immediately reduce
to medium speed and approach the signal at Dorsey prepared to stop. ( !! UNLESS
his train was greater than 7300 feet long ! In which case he would have to act
quickly to stop at Montevideo Road to avoid blocking the roadway, since trains
greater than that length will not fit between the road and Dorsey signal.)"
Links to illustrated descriptions of signals:
Mike's B&O Signals Page,
Todd's CPL Home Page