Old Ottawa South Community Association

Traffic Update: The Riverdale & Area Traffic Study 2014-2016

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This summer major sidewalk modifications are coming to the intersection of Cameron and Riverdale Avenue. New corner bulb-outs to improve pedestrian safety and to emphasize stop signs at this busy crossing are part of the Riverdale & Area Traffic Study initiated in 2013.

The Riverdale Study (approved in two stages in 2014 & 2015) also recommended three speed humps: two on Riverdale (one between Windsor & Belmont and the other between Cameron & Bank) and one on Sunnyside Avenue, east of Bank near St. Margaret Mary’s Church. These three speed humps are also expected in the next few months.

In addition, bicycle “sharrows” have been approved and will be painted at intervals along the entire length of Riverdale Avenue, from Bank to Main, connecting the Rideau River Eastern Pathway to the soon-to-be-completed Main Street bike-lanes. No definite dates are known, but all of the above have been approved for 2016.

The Riverdale Avenue Traffic Study Study includes the Riverdale Avenue corridor between Bank Street and Echo Drive (up to Avenue Road) and several adjacent side streets. The first public Open House was held in May 2013 and by early January 2014 recommendations were posted for public feedback. With comments provided by residents verbally and in writing, elements of the June 2013 OSCA Traffic Study were also submitted for the City’s consideration.

Essentially, recommendations from the Riverdale Study included: one flat-topped speed hump on Sunnyside Avenue east of Bank, two flat-topped speed humps on Riverdale Avenue, ladder crosswalks at Riverdale & Sunnyside and at Riverdale & Cameron (introduced in 2014), bulb-outs at Cameron, new maximum 40 km/hr speed signs installed at Cameron & Belmont (also expected this summer) and new parking signs (with no changes as to duration) along Riverdale Avenue.

The term “flat-topped speed humps” requires some clarification. Speed “bumps” are short and the vertical lift is abrupt. Speed “humps” are much wider than speed bumps, approximately 13 feet and the vertical lift is gradual.  Speed humps slow drivers down on local/collector roads, while speed bumps slow drivers down in parking lots or privately owned roadways.  Flat-topped speeds humps are longer than speed humps, approximately 22 feet, and have a 9 foot flat top section.

Until the redevelopment of Main Street is complete (2017), Old Ottawa South will continue to experience larger than usual vehicle traffic along Riverdale and Sunnyside Avenues and connecting streets.

Note that the northbound lane of Main Street from Riverdale to Clegg Street will be closed from May 2 to November 2016 as part of the Main Street Renewal Project.


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