Installation Guidelines

A Stop Sign shall always be placed at or as near as possible to the point where the vehicle
is to stop. The Stop Sign should not be placed further than [5 m from the near edge of
the intersecting roadway with its preferred location being not further than 5m
(Fig. A.3).

Where only one Stop Sign is used it shall be placed on the right-hand side of the
traffic lane to which it applies. Where two or more lanes of traffic on a one-way or
divided highway are controlled by a Stop Sign, a second Stop Sign shall be placed where
it is visible to the traffic in the left-hand lane.

Whena minor road controlled by a Stop Sign intersects a through route at an acute
angle, the Stop Sign should be placed to avoid displaying the stop message to drivers on
the through route. This may require shielding the sign from the view of through traffic
or orienting the sign parallel to the through route.

When a Stop Sign is used to control traffic on one approach of a four-way
intersection, the opposing approach should normally be controlled by a Stop Sign.

When Stop Signs are warranted the stem of a T-intersection should normally be
stopped when the approach traffic volumes are approximately equal on all three
approaches. ,

Where the physical characteristics of the intersection, accident experience. travel
speeds, etc., indicate, the Stop Sign may be supplemented by one or more of the
following devices:

(1) a flashing red beacon in operation both day and night (Sec. B6.01 and Sec. Al. 11);
(2) a Stop Ahead Sign (WB-1) (Sec. A3.51);
(3) astop line (Sec. C2.52).

Usage Guidelines (General)

Stop Sign control results in delay to motorists and may increase the colliston expe-
rience. Stop Signs should, therefore, not be used indiscriminately. Stop Signs are not
intended as speed control devices. Their usage is therefore limited to the control of
right-of-way conflicts.

Stop Signs shall not be used on the same approach to intersections where traffic
control signals are operating. Portable or part-time Stop Signs shall not be used except
in emergency or temporary situations, such as in conjunction with flagmen or at
intersections where traffic signals are no longer working.

As a general rule, Stop Signs should only be used where traffic engineering studies
considering such aspects as traffic speeds, traffic volumes, restricted sight lines and
collision experience, indicate that the usage of Stop Signs is warranted. Without
restricting the intended usage, Stop Signs may be warranted at locations where one or
more of the following conditions exist:

(a) ona minor street or road entering a through street or highway:

(b) onthe street or road carrying the lesser volume of traffic at an intersection where
all streets are of the same functional classification:

(c} at unsignalized intersections in a signalized area except where they would interfere
with traffic signal progression;

(d} at intersections where application of the normal right hand rule would be unduly
hazardous:

{e) atan intersection where the safe vebicular approach speed is less than 15 km/h;

(f) at railway crosst for automatic protection, as an interim

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measure:

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