Illinois Administrative Code
Title 92 - TRANSPORTATION
Part 1535 - CROSSINGS OF RAIL CARRIERS AND HIGHWAYS
Subpart D - MARKING AND WARNING DEVICES AT GRADE CROSSINGS
Section 1535.360 - Gates

a) Section 1535.335(a) relating to the location of flashing light signals shall apply in locating crossing gates whether such gates are installed in conjunction with flashing light signals or independently. In general gate arms shall extend at right angles to the highway when in lowered position.

b) Gates hereafter installed shall conform, as to aspect and design, with current signal specifications of AREMA.

c) Gates arms shall be striped diagonally in red and white and shall be kept reasonably clean so as to be readily observable.

d) Three red lights shall be mounted upon each roadway gate arm in such manner as to give an indication in both directions along the highway at all times when gates are in the lowered position and when they are being raised and lowered. The red lights shall be of such brilliancy as to give indication to highway traffic when at a reasonable distance from the crossing. When lighted, the red light unit nearest the tip of the gate arm is to be steady burning and the other two lights shall flash alternately in unison with the flashing light signals. The three lamp units shall be operated together with the flashing light signals in such manner as to give reasonable advance warning to highway traffic of the lowering of gate arms.