Article content Ontario’s dump truck drivers again took their anger over new equipment rules to Toronto’s highways on Thursday, staging a series of rolling protests over a rule they say unfairly targets older vehicles. Organized by the Ontario Dump Truck Association (ODTA,) convoys of more than 1,000 dump trucks slowed traffic to a crawl along the 401, 427, Gardiner Expressway and Don Valley Parkway, demanding consideration from Queen’s Park over rules introduced in January requiring expensive retrofits to trucks over 15 years old under the province’s Safe, Productive, Infrastructure Friendly (SPIF) program. We apologize, but this video has failed to load.