Rob Ford has dismissed a report that suggests a reduction in speed limits to protect pedestrians and cyclist in Toronto as "nuts."

Asked if the city will drop speed limits, as suggested earlier this week by the city's chief medical officer of health Ford told reporters on Friday the idea is "nuts, nuts, nuts, nuts. No."

The report — Road to Health: Improving Walking and Cycling in Toronto — released by Dr. David McKeown recommends speed limits be reduced by as much as 20 km/h, saying the slower speed limits will protect pedestrians and cyclists.

If accepted the speed limit on Lakeshore Boulevard might be reduced to 40 km/h. On most residential streets traffic would be reduced to about 30 km/h.

Ford, who has many times referred to what he calls the 'war on the car' in Toronto, said the proposal is "absolutely ridiculous."

The mayor was also asked about a vote this week by Metrolinx, the provincial transportation agency, which gave the green light to four light rail projects on Toronto's streets.

Ford, whose vision of subways was soundly defeated by city council, said he's not giving up.

"I'm not going to stop fighting for subways. That's what the people want. That's what we'll continue to do."

The mayor also said a proposal for road tolls to pay for public transportation projects being floated by some on city councillor is not going to survive.

"I'm totally, 100 per cent opposed to toll roads. If they want to float it — I'm going to sink it."

The mayor also dismissed a new group that has emerged from within city council which describes itself as a centrist group.

Ford said contemptuously that there's "no middle" at city hall. City councillors, he said, are on "One (side) or the other."

But Ford said although they may make proposals for the city agenda, he remains in charge.

"I encourage them to meet and come and talk to me - and as you guys know I'm meeting with the councillors, as many as I can — and getting their input and telling [them] the direction I want to take the city."

Ford made the comments during a news conference to show off a new iPhone app which will allow residents to easily report vandalism, graffiti and potholes.