Regulatory Signs

STOP SIGNS

Stop signs need to be located as close as possible to the point where a vehicle is supposed to stop. Use "STOP AHEAD" signs in cases of limited sight distances. Supplement stop signs with "4-Way" or "All Way" signs where multi-way stops are required. Examples of places where stop signs might be used include: intersections of secondary roads and main haul roads, intersections where sight distance is limited, intersections of haul roads and public roads, and places where accidents have occurred in the past.

YIELD SIGNS

Yield signs need to be located as close as possible to the point where vehicles are supposed to yield. Place "Yield Ahead" signs in advance of the "Yield" signs where necessary. Yield signs assign the right-of-way where secondary roads intersect main haul roads, or where two haul roads intersect and stopping is not required.

SPEED LIMIT SIGNS

Speed limits are based on factors such as road conditions, grades, surface, visibility, curves, potential hazards, and the mechanical capabilities of the haulage equipment used at the mine. Post speed limits at regular intervals to remind drivers of applicable speed limits. Also post speed limit signs near intersections where traffic may be entering onto the haul road from another road with a different speed limit.

TURN PROHIBITION SIGNS

These signs are used to restrict certain types of turns at intersections. They are also used at intersections to keep traffic from turning onto a one way road and traveling in the wrong direction.

LANE USE CONTROL SIGNS

These are used at intersections where drivers are required to turn, or to tell drivers how certain lanes are to be used.

NO PASSING SIGNS

No passing signs are placed at the beginning of (and at intervals within) a restricted passing area. A "Pass With Care" sign indicates the end of the no passing zone.

KEEP RIGHT/LEFT SIGNS

These signs are placed at the end of median dividers and channeling islands to indicate which side of the median or island should be used by traffic.

DO NOT ENTER SIGNS

This sign is placed at the end of a one way road to keep traffic from entering the roadway and traveling in the wrong direction. "Wrong Way" signs supplement "Do Not Enter" signs.

ONE WAY SIGNS

These signs are placed at appropriate corners of intersections facing traffic entering or crossing the one way road.