December 9, 1998

To:Etobicoke Community Council

From:John W. Thomas, P. Eng., Director, Transportation Services - District 2

Subject:Traffic Assessment:

Edenbridge Drive, Edgehill Road, and Edgevalley Drive

(Kingsway-Humber)

Purpose:

To address the concerns of area residents with respect to the speed and volume of vehicular traffic on Edenbridge Drive, Edgehill Road, and Edgevalley Drive.

Funding Sources:

There are no funding implications associated with this report.

Recommendations:

It is recommended that:

(1)no additional traffic control measures be implemented on Edenbridge Drive, Edgehill Road, and Edgevalley Drive; and,

(2)Toronto Police Services be requested to enforce the 50km/h speed limit on Edenbridge Drive near North Drive.

Council Reference:

Etobicoke Community Council, at its meeting held on Wednesday, July 22, 1998, referred a report dated May 27, 1998 from the Commissioner of Works, back to the Director of Transportation and Engineering Planning, with a request that a comprehensive review be undertaken with respect to the speed and volume of vehicular traffic in the area of Edenbridge Drive, Edgehill Road and Edgevalley Drive, to be the subject of a future report to the Etobicoke Community Council (Attachment No. 1). A map of the area is AttachmentNo.2.

To assess traffic conditions of Edenbridge Drive, Edgehill Road, and Edgevalley Drive, the following information was obtained:

(1)Manual approach counts conducted at the intersections of Edenbridge Drive and North Drive, Edgehill Road and Colwood Road, and Edgevalley Drive and Colwood Road;

(2)A historical count analysis;

(3)Radar speed studies conducted on Edenbridge Drive, Edgehill Road, and Edgevalley Drive; and,

(4)An accident review on Edenbridge Drive, Edgehill Road, and Edgevalley Drive.

Comments and Discussion:

The Ministry of Transportation of Ontario has provided the following warrants for the installation of all-way stop controls on roads and streets considered to be neither arterial nor major collector streets:

a)total vehicle volume on all intersection approaches must exceed 350 for the highest hour recorded; and,

b)a volume split should not exceed 65/35 for a four-way control and 75/25 for a three-way control.

(1)Manual Approach Counts

The following table summarizes the results of the all-way stop studies conducted at the intersections of Edenbridge Drive and North Drive, Edgehill Road and Colwood Road, and Edgevalley Drive and Colwood Road, between the hours of 7-9 a.m. and 4-6 p.m.

It is evident that the peak hour volumes and the balance of flow at all three intersections do not meet the minimal warrant requirements.(2)Historical Count Analysis

The following table compares recent automatic traffic counts to historical counts.

Traffic volumes on Edenbridge Drive have decreased since the installation of traffic control signals at the intersection of Royal York Road and Edenbridge Drive in 1997. A decrease in traffic volume has also been experienced on Edgehill Road in the last seven years. In the last five years there has been a marginal increase in the volume of traffic on Edgevalley Drive.

Existing traffic volumes on all three roadways are well within road classification parameters.

(3)Radar Speed Studies

The following table summarizes the results of the speed studies conducted on Edenbridge Drive, Edgehill Road, and Edgevalley Drive between the hours of 7-9 a.m. and 4-6 p.m. The legal speed limit on all three roadways is 50 km/h.

The 85th percentile and the average speeds on Edgehill Road and Edgevalley Drive are well within acceptable levels.

(4)Accident Review

A review of the accident history for the period January 1, 1995 to December 31, 1997 revealed fourteen reportable accidents on Edenbridge Drive between Royal York Road and Scarlett Road, two reportable accidents on Edgehill Road between Royal York Road and Edenbridge Drive, and two reportable accidents on Edgevalley Drive between Edgehill Road and Edenbridge Drive.

Ten of the fourteen reportable accidents on Edenbridge Drive can be contributed to poor weather and/or road surface conditions with the majority of these occurring at the curve and hill located east of Edgehill Road. It should be noted that curve warning signs and "30 km/h" speed advisory tabs are located in advance of the curve sections on Edenbridge Drive.

One of the two accidents that occurred on Edgehill Road involved a driver falling asleep at the wheel and striking a tree. The other collision involved a driver side-swiping a parked vehicle.

Both collisions on Edgevalley Drive were of angle type. One accident occurred when a motorist struck a vehicle that was reversing out of a driveway and the other collision occurred at the intersection of Edgevalley Drive and Westridge Road.

Conclusions:

Traffic conditions at the intersections of Edenbridge Drive and North Drive, Edgehill Road and Colwood Road, and Edgevalley Drive and Colwood Road do not meet the minimum requirements of the Ministry of Transportation of Ontario warrants for the installation of all-way stop controls.

Traffic volumes on Edenbridge Drive and Edgehill Road have decreased over the years while a minimal increase has been experienced on Edgevalley Drive. All three roadways are reflective of their road type classification in terms of traffic volumes.

The results of the radar speed studies reveals a speeding problem on Edenbridge Drive in the area of North Drive.

The accident analysis for the study area indicated a relatively high number of collisions occurring on Edenbridge Drive near the hill and curve east of Edgehill Road during poor weather and/or road surface conditions. Although curve warning signs and speed advisory tabs are located well in advance of the horizontal alignment changes on Edenbridge Drive, motorists are not adjusting to these changes in these adverse conditions.

Contact Name:

Mark Hargot, Traffic Co-ordinator - Transportation Services - District 2

(416) 394-8453; Fax (416) 394-8942

John W. Thomas, P. Eng.

Director, Transportation Services - District 2

ccStreet File "E"