§ 335.090. Obedience To Signal Indicating Approach of Train.

A. 

Whenever any person driving a vehicle approaches a railroad grade crossing under any of the circumstances stated in this Section, the driver of such vehicle shall stop within fifty (50) feet but not less than fifteen (15) feet from the nearest rail of such railroad and shall not proceed until he/she can do so safely. The foregoing requirements shall apply when:

1. 

A clearly visible electric or mechanical signal device gives warning of the immediate approach of a railroad train;

2. 

A crossing gate is lowered or when a human flagman gives or continues to give a signal of the approach or passage of a railroad train;

3. 

An approaching railroad train is plainly visible and is in hazardous proximity to such crossing.

B. 

No person shall drive any vehicle through, around or under any crossing gate or barrier at a railroad crossing while such gate or barrier is closed or is being opened or closed.

C. 

No person shall drive a vehicle through a railroad crossing when there is not sufficient space to drive completely through the crossing.

D. 

No person shall drive a vehicle through a railroad crossing unless such vehicle has sufficient undercarriage clearance necessary to prevent the undercarriage of the vehicle from contacting the railroad crossing.

E. 

Every commercial motor vehicle as defined in Section 302.700, RSMo., shall, upon approaching a railroad grade crossing, be driven at a rate of speed which will permit said commercial motor vehicle to be stopped before reaching the nearest rail of such crossing and shall not be driven upon or over such crossing until due caution has been taken to ascertain that the course is clear. This Section does not apply to vehicles which are required to stop at railroad crossings pursuant to Section 304.030, RSMo.