Sarah Thomson enters Toronto mayoral race

WATCH: Sarah Thomson is interviewed on The Morning Show to talk about her ideas for Toronto on March 21, 2014.

TORONTO – Sarah Thomson is taking another shot at becoming the mayor of Toronto.

The 2010 mayoral candidate filed her registration papers Thursday morning and has officially put her name on the ballot.

Thomson dropped out early in the municipal campaign four years ago to support George Smitherman.

“I got to third place in the polls at one point before I ran out of money,” she told reporters after jumping off a red horse-drawn carriage and prior to entering city hall Thursday morning.

Thomson said her one of her priorities is building a sustainable subway system by introducing tolls on the Gardiner Expressway and the Don Valley Expressway charged to non-residents only.

She also supports the expansion of the Yonge Street relief line as her first transit initiative, with the Scarborough extension as something to look at down the road.

“A subway vehicle holds more people than an LRT. We don’t have the density to warrant a subway vehicle there,” Thomson said. “I’m for underground LRT, after we have built the downtown relief line.”

The second time mayoral candidate promises not to increase taxes to business, to push for electoral reform at city hall with term limits for councillors and create long-term funding to non-profit organizations caring for the homeless and people living in social housing.

“We’ve been in a standstill for four years,” she said. “We have to invest and look at building a city.”

Thomson made headlines last year when she accused Mayor Rob Ford of groping her at a party in March.

At the time, she suggested Ford may have been under the influence of cocaine or other drugs when the incident happened.

Ford denied the allegations.

READ MORE: Ford may have been intoxicated during alleged groping, Thomson says

Two months later the alleged video of Ford smoking crack was discovered and in November Ford admitted he had smoked crack in the past.

“He’s got some problems to sort out,” Thomson said.

Thomson is publisher and CEO of Women’s Post magazine and the Chair and Director of the Toronto Transit Alliance.

She ran in the 2011 provincial election as the Liberal candidate for the Trinity-Spadina riding. NDP candidate Rosario Marchese won by 1,075 votes.

Voters head to the polls October 27.