Quote:
Originally Posted by mishap
They should build the two-lane link to the Caledonia Bypass by the time the current roadway is twinned. Otherwise, they're just dumping an even bigger roadway onto the current Highway 6. And while they're at it, put in an interchange at Caithness St (Hwy 54) so traffic has an outlet when the bridge is blockaded.
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Traffic volumes would dictate the need for a new link. These are a bit old now for the segments we're talking about; I'd wager the numbers for the 2-lane section are a lot higher today, especially at Butter and Book, but whether the levels between 6 New and Caledonia are much different I don't know (they were pretty stable between 2007 and 2016, but growth in Caledonia may have cause them to rise more recently)
Provincial Highways Traffic Volumes, 1988-2016 (PDF)
2016 Hwy 6, Annual Average Daily Traffic volumes:
Argyle St S: 9,700
Argyle St N: 23,700
Haldibrook Rd: 24,600
"old" Hwy 6 (Upper James): 22,700
Whitechurch Rd: 9,300
Butter Rd: 13,500
Book Rd: 15,700
From the US-DOT publication below capacity for a 2-lane highway with no signals is 1,490 vehicles per hour per direction. That doesn't account for peak flows though, and high volumes of trucks would affect that too.
https://www.fhwa.dot.gov/policyinfor...3/hpms_cap.pdf
Re: an interchange at 54, given the tight squeeze of the river any link to the Hwy 6 bypass of Caledonia would probably mean building an access road between them - e.g., have one coming north off an intersection with 54 that curves and meets 6 (an intersection would probably suffice for now)