Grantham Ave. One-way Conversion Follow Up

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Earlier this year, Grantham Avenue South was converted to one-way northbound operation from Blair Crescent to Eastchester Avenue. The pilot project was implemented in response to concerns regarding excessive traffic, including numerous large trucks, using the street as a connecting link between Queenston Street and Dunkirk Road.

To gauge the success of the conversion on achieving its purpose, and to quantify the impact on the neighbouring streets, before (2019) and after (2021) speed and volume studies were conducted on Grantham Avenue South, Chelsea Street, Marmora Street and Lorne Street.

Traffic Volume

Grantham Avenue South saw a reduction in traffic of approximately 2,200 vehicles a day, whereas the adjacent streets saw a combined increase of approximately 820 vehicles a day, which was expected. This indicated that approximately 1,380 vehicles a day used an alternate route and not any of the streets in the neighbourhood. Overall, the average daily traffic volumes are considered typical when compared with other local residential streets throughout the City.

Studies were also conducted on Arlington Avenue and Blair Crescent in 2021 and the volumes, 210 vehicles a day for Arlington Avenue and 250 vehicles a day for Blair Crescent, indicate that neither street was significantly impacted by the pilot project.

Traffic Speed

Grantham Avenue South saw a notable increase in the 85th percentile speed, which was expected, as there is no longer friction from opposing flow traffic. The other streets saw an increase in speeds, which can most likely be attributed to the increase in traffic.

Overall, the average speed and 85th percentile speeds would, for the most part, be considered typical when compared with other local residential streets throughout the City. None of the streets satisfy the requirements of the City’s traffic calming program (i.e., speed humps/cushions).

Truck Traffic

Grantham Avenue South saw a significant reduction in truck traffic, but it didn’t result in trucks using other streets in the neighbourhood.

Conclusion

The purpose of the pilot study was to assess the impact that the one-way conversion on Grantham Avenue South had on traffic patterns and operations throughout the neighbourhood. Now that the pilot project has concluded, a determination will be made to either make the one-way operation permanent or return it to two-way operation. Prior to this, we want to hear from the residents.

Please complete the short survey below indicating your desire to either keep Grantham Avenue South one-way or return it to two-way operation.

Earlier this year, Grantham Avenue South was converted to one-way northbound operation from Blair Crescent to Eastchester Avenue. The pilot project was implemented in response to concerns regarding excessive traffic, including numerous large trucks, using the street as a connecting link between Queenston Street and Dunkirk Road.

To gauge the success of the conversion on achieving its purpose, and to quantify the impact on the neighbouring streets, before (2019) and after (2021) speed and volume studies were conducted on Grantham Avenue South, Chelsea Street, Marmora Street and Lorne Street.

Traffic Volume

Grantham Avenue South saw a reduction in traffic of approximately 2,200 vehicles a day, whereas the adjacent streets saw a combined increase of approximately 820 vehicles a day, which was expected. This indicated that approximately 1,380 vehicles a day used an alternate route and not any of the streets in the neighbourhood. Overall, the average daily traffic volumes are considered typical when compared with other local residential streets throughout the City.

Studies were also conducted on Arlington Avenue and Blair Crescent in 2021 and the volumes, 210 vehicles a day for Arlington Avenue and 250 vehicles a day for Blair Crescent, indicate that neither street was significantly impacted by the pilot project.

Traffic Speed

Grantham Avenue South saw a notable increase in the 85th percentile speed, which was expected, as there is no longer friction from opposing flow traffic. The other streets saw an increase in speeds, which can most likely be attributed to the increase in traffic.

Overall, the average speed and 85th percentile speeds would, for the most part, be considered typical when compared with other local residential streets throughout the City. None of the streets satisfy the requirements of the City’s traffic calming program (i.e., speed humps/cushions).

Truck Traffic

Grantham Avenue South saw a significant reduction in truck traffic, but it didn’t result in trucks using other streets in the neighbourhood.

Conclusion

The purpose of the pilot study was to assess the impact that the one-way conversion on Grantham Avenue South had on traffic patterns and operations throughout the neighbourhood. Now that the pilot project has concluded, a determination will be made to either make the one-way operation permanent or return it to two-way operation. Prior to this, we want to hear from the residents.

Please complete the short survey below indicating your desire to either keep Grantham Avenue South one-way or return it to two-way operation.

  • Please complete the survey to help us gauge the interest of residents in keeping Grantham Avenue South one way, or returning it to two way

    Take Survey
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Page published: 19 November 2021, 10:03