What is a caution order?

July 17, 2019, 1:42 PM
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A Caution Order (or caution notice) is a written notice issued by a station master (or other official) to the driver and guard of a train, formally advising them of special conditions and restrictions in effect on the section of track that the train is about to enter. The Caution Order may have instructions on speed restrictions and other special procedures to be followed on account of damage to the tracks, flooding, work on the permanent way or on the electrical equipment, accidents (or reminders of spots where accidents recently occurred), work on or damage to OHE equipment, or unusual situations.

A caution order can also be issued to advise the driver and guard of the presence of manually operated or motor trolleys, tower cars, MOW wagons, or other such maintenance or emergency vehicles that have entered the block section ahead. The caution order usually specifies the location of the affected section of track, the temporary speed limits in effect, the locations of caution indicators and termination indicators, etc.

Some representative examples of caution orders are the following:

Track doubling in progress – whistle to alert men at work
Track destressing – 20km/h
New colour-light signal location
Level crossing gate – no acknowledgement given; be prepared to stop if gateman does not display hand signal
Accident spot – 75km/h
Up distant signal number … of station … inoperative due to a cable break; keep a good look-out, whistle while approaching and Proceed
A caution order is generally issued by the station master of of a station adjacent to the block section which is affected. In addition, divisional caution orders are also issued by station masters of certain specified stations on the route, known as notice stations.

A caution order is specifically addressed to the driver and guard of a particular train identified on it. Separate caution orders are issued for each train passing through on to the affected section. At many of the larger stations nowadays the caution orders are printed out but at smaller stations, handwritten notes still prevail.

A nil caution order is issued by a notice station to inform the driver and guard of a train that there are no special caution instructions or temporary speed restrictions in effect between that station and the next notice station. A reminder caution order may be issued by a notice station to reiterate caution orders already issued by other stations or authorities.

Source – IFRCA.org

 

 

 

 
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