Toronto residents rank traffic congestion as the city's biggest transportation problem heading into this month's municipal election, according to a Nanos Research poll conducted for CP24 and CTV News Toronto. In the survey of 757 adults, 46 per cent named congestion as their top issue, well ahead of TTC reliability at 19 per cent, with Scarborough respondents the most likely to point to transit.

Cycling infrastructure produced the sharpest divide in the poll. Roughly three-quarters of Mayor Olivia Chow's supporters favoured expanding bike lanes, while about the same proportion of Brad Bradford's supporters opposed expansion, a near mirror image that underlines how central the bike-lane fight has become to the campaign.

The poll was conducted October 8 to 10 using a dual-frame random telephone and online sample, weighted by region, age and gender to census figures. Nanos put the margin of error at plus or minus 3.6 percentage points, 19 times out of 20.

With voting day approaching, the results suggest transportation — how Toronto drivers, transit riders and cyclists share limited road space — will remain one of the defining ballot questions in the city.