Since the lease of the highway's operation, there has been a noticeable decrease in design standards, including straight-sided overpass structures (rather than the sloped design common on most provincial highways), the conversion of dual exit lanes to an exit lane and an additional travel lane in Mississauga rather than paying to widen the carriageway and maintaining two exit lanes, the reduction of the central median and the use of temporary concrete barriers rather than maintaining the median width, and the use of asphalt paving rather than concrete on the Burlington to Mississauga and Markham to Pickering sections. The freeway still adheres to minimum provincial government highway safety standards, although the MTO themselves regularly exceed their own standards.