SPEEDS

Question 1

LIMITED SPEED

Answer 1

A speed not exceeding 40 mph

Question 2

MAXIMUM AUTHORIZED SPEED (MAS)

Answer 2

The highest speed that is permitted over a specific portion of the railroad. It may be authorized by the special instructions of the current timetable, Rules of the Operating Department or any other publication authorized by the General Superintendent-Transportation.

Question 3

MEDIUM SPEED

Answer 3

A speed not exceeding 30 mph, except in ASC territory, train will be governed by speed display on the cab signal indicator not to exceed 40 mph.

Question 4

REDUCED SPEED

Answer 4

A speed at which a train can be stopped short of another train or obstruction.

Question 5

RESTRICTED SPEED (RS)

Answer 5

A mode of operation, at which a train can be stopped within one half the range of vision, short of the next signal, another train, obstruction, derail, or switch improperly lined, looking out for broken rail or crossing protection not functioning, not exceeding 15 miles per hour.

Question 6

SLOW SPEED

Answer 6

A speed not exceeding 15 mph, except in ASC territory, train will be governed by speed displayed on the cab signal indicator not to exceed 30 mph.