HomeMy WebLinkAboutWD-7-92 THE CORPORATION OF THE TOWN OF NEWCASTLE
REPORT
Meeting: GENERAL PURPOSE AND ADMINISTRATION COMMITTEE File#
#
Date: JANUARY 6, 1992 Res.
By-Law#
Report#:__WD_-_7_-_92_ File#: _PR._71t__2_EL
Subject: CRITERIA FOR LIGHTING OF INTERSECTIONS OF ROADS
Recommendations:
It is respectfully recommended that the General Purpose and
Administration Committee recommend to Council the following:
1 . THAT Report WD-7-92 be received; and
2. THAT the guidelines contained in Section 2 .4 . 3 of The Roads and
Transportation Association of Canada be used by the Town of
Newcastle in assessing the need for lighting of roadway
intersections.
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REPORT
1.0 BACKGROUND
1. 1 At a meeting held on May 13, 1991, Council passed Resolution
#C-318-91 :
"THAT the Director of Public Works review the criteria for
street lighting of intersections in the municipality and
forward a report to the General Purpose and Administration
Committee. "
2.0 REVIEW AND COMMENT
2 . 1 The best available guidelines for the lighting of intersections
are provided in the Roads and Transportation Association of
Canada "Guidelines for the Design of Roadway Lighting" . The
following warrants are copied from the manual:
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REPORT NO. : WD-7-92 PAGE 2
"2.4.3 WARRANTING FACTORS FOR PARTIAL LIGHTING
2.4.3.1 General
The warranting of partial lighting appears to have
no consensus of agreement in North American
practices. The recommendations given herein are
based on a compendium of recommendations, with
several factors added in areas where problems are
known to exist.
2.4.3.2 Intersections
Partial lighting at intersections and major
commercial entrances should be considered if any
of the following conditions apply:
traffic signals are required,
the warrants for traffic signals are at least
80% fulfilled (this in itself takes turning
volumes and accident rates into account) ,
the accident rate exceeds 1.5 accidents per
million vehicles entering the intersection,
the night/day accident ratio exceeds 1 .5,
the night accident rate is an average of
three per year over at least three years,
channelizing (raised curb) islands are used,
adjacent properties have high lighting
levels,
more than one lane on any approach is
required to stop or yield,
the intersection is on a crest vertical curve
where the pavement at the far side of the
intersection cannot be seen from the stopping
sight distance,
the intersection is on a sag vertical curve
where the pavement at the far side of the
intersection is not illuminated by the
vehicle headlights within the stopping sight
distance, and
. . . /2
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REPORT NO. : WD-7-92 PAGE 3
any obstruction prohibits full view of the
intersection from the stopping sight distance
to any area within 30 m of any through lane. "
2.2 Cost
The cost for providing a streetlight at an intersection is
dependent upon the availability of power and a pole at a suitable
location. If the power and the pole are available the cost would
be about $700 . The cost where a pole and power are not available
will depend on the distance to the nearest available power and
each location would have to be estimated on its own merits.
2 . 3 The Town has about five hundred (500) miles of roads and hundreds
of intersections. It is therefore important to have a good set
of warrants to deal with requests for this type of lighting.
Respectfully submitted, Recommended for presentation
to the Committee,
---Wd ' nistrative----------------
Walter A. Evans, P.Eng. , Lawotseff,
Director of Public Works Chi Officer
WAE*ph
December 17, 1991
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