Highland’s studies assume, as a guideline, that they will have truck movements in and out of the quarry area of approximately 7,200 trucks per day operating on a 24 hour per day, 7 day per week basis. These trucks will contain loads with 40 plus tons of material.
300 trucks per hour, means that there will be a truck either entering or exiting the quarry onto County Road 124 every twelve seconds. The applicant’s materials are based on being within a certain radius of the Vaughan Corporate Centre, meaning that they are justifying the aggregate need as being oriented towards the Greater Golden Horseshoe. One has to assume then that the substantial majority, if not all, of the truck activity would be heading south on CR 124 with a full load, and then returning to the quarry heading north on CR 124 to refill their load. Highland’s traffic study does not clearly state this, but it should.
This means that there will be one truck heading south on the highway every 24 seconds, and one truck heading north every 24 seconds. The traffic study did not talk in great detail about truck spacing, although it should have. If they all travel at safe distance intervals between them, then this could amount to the highway being substantially, if not entirely, devoted to this truck traffic. Highland states that the highway can function properly without widening except that if they go above 150 trucks per hour (each way), then perhaps an extra turn lane will be required at the southbound intersection of CR 124 and Highway 89. County Road 124 is a two‐lane roadway. Highland’s conclusions are not credible.