Ontario proposes to allow quad-axle groups on 53-foot trailers

TORONTO (June 29, 1999) — Presenting a document with the words “Modified Ontario Trucking Association Proposal” at the top, transport regulators from Ontario yesterday unveiled a plan to permit the use of 53-foot semi-trailers with a four-axle grouping.

The proposed changes, which would apply to 53-foot single semi-trailers only, would be restricted to a one-three axle configuration — typically a liftable self-steering axle ahead of a tridem, with load equalization across all four axles. The allowable weight would be consistent with current rules governing one-three quads on 48-foot semi-trailers: 32,000 kg when the tridem spread is from 3.0 to 3.6 metres, and 34,400 kg when the spread is between 3.6 and 3.7 metres.

The configuration would be allowed on a permit-only basis for one year. Applicants would be screened for a satisfactory safety record.

The plan, developed by the OTA, would also increase the allowable weights on a 1.2 to 1.5-metre tandem spread to 18,000 kg. and on a 3.6 to 3.7-metre tridem to 25,000 kg. A tri-axle configuration with a self-steering axle is also being considered.

The proposal, which would require an amendment to the provincial Highway Traffic Act, was made during a meeting of provincial and federal transport regulators, as well as industry trucking association leaders, in Toronto yesterday.

While a 53-foot quad would be a boon to carriers operating within Ontario, enthusiasm for the proposal stops at the border. The plan is not compatible with current regulations in Quebec, where semi-trailers longer than 15.5 metres (50 feet, 10 inches) are not allowed to operate with lift axles. The maximum weight Quebec allows on a four-axle grouping is 32,000 kg.

“Running 20 loads a night into Montreal, we’re cubed out right now on 48-foot vans with quads,” said one Toronto-based fleet manager whose company operates extensively between Ontario and Quebec. “The extra space would mean a lot to me were Quebec on side, because we have to drive through there. I’m sure this would help some of the lumber carriers and the guys hauling steel rods within Ontario, but what does good by us is more harmony on size and weight rules, not less.”