MARC is

The Maryland Area Regional Commuter (MARC). It operates three lines that include Maryland, Washington D.C., and West Virginia. MARC Train operates on weekdays only with limited service on select holidays. For the Brunswick and Camden Line, there is morning and evening rush hours only. For the Penn Line there is all day and late evening service.

Source:www.mtamaryland.com/services/marc/serviceInformation/MARC_General_Information.cfm

Monday, May 18, 2015

MARC CSX-related Heat Restrictions

Oldie but Goodie:

CSX Heat Restrictions or Heat Orders

Passengers on the Brunswick and Camden Lines often see messages during the spring and summer informing them that there are “heat orders” in effect. 

CSX Transportation, the owner of the Brunswick and Camden Lines*, reduces the maximum speed of passenger trains by 20mph (but not under 40mph) under one or both of the following conditions:
  • Consistent ambient temperatures of 85 degrees or greater 
  • A 25 degree swing in temperatures either warmer or colder in a 24-hour period. 
 Delays can be 15 minutes to over an hour. This is because tracks can warp and cause derailments so it’s a serious matter.


* Heat orders do not take effect on the Penn Line until temperatures reach 95 or 100 degrees...

See What are Heat Orders Link for more details: