[eternallyme]

19,000 cars a day on 174 between Trim Road and Rockland? That clearly warrants upgrades, even if the commercial vehicle count is low.

As for the potential Orleans bottleneck, remember the capacity for a 4-lane freeway (built before the 417 bypassed the section, correct?) is higher than for a 4 or 5-lane arterial (the 5th lane being a central left turning lane) and the presence of 417 to the south means a freeway is not required there. A 5-lane arterial is my preferred option, since it allows for better local access without significantly impacting traffic operations, and does not require immediate access controls (access controls should be standard for an 80-90 km/h rural arterial highway).