Quote:
Originally Posted by Andy6
Twinning would seem to me to be a much bigger priority than interchanges, both economically and in terms of safety. How many miles (sorry, kilometres) of twinned highway do you get for the cost of a Hwy 1-16 or Hwy 1-12 interchange?
In southern Manitoba, if you look at the TCH, where would you really ever need an interchange that doesn't already have one?
100-St. Anne's
100-St. Mary's
100-Kenaston Extension
100-2/3
1-16
1-110
1-10
Other than that, where else in the province? 75-14 maybe? 75 at Morris eventually? 101-15 and 101-6 eventually as well. Maybe 110-10 or 1-83 if Brandon grows and/or fracking really takes off in the SW, but I don't know how the truck traffic moves in relation to that.
I'm sure I'm forgetting a few, but anything much beyond this would really be scraping the bottom of the necessity barrel.
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Manitoba is actually in pretty good shape as far as twinning goes, if you look at this traffic flow map:
http://umtig.eng.umanitoba.ca/mhtis/flowmap2012.pdf
As I understand it, it's around average daily traffic volumes 6,500 where twinning is regarded as necessary. By that standard, there are only a few relatively short stretches of road here and there throughout southern Manitoba where twinning is needed, including:
- Highways 59 and 52 in the Kleefeld area
- Highway 32 south of Winkler
- Highway 15 to Dugald
- Highway 7 to Teulon
That's about 75 km of highways that really should be twinned.
Then you have the ones that aren't normally that busy, but can get quite clogged at times, mainly in the summer. Twinning might be a good idea but is by no means an absolute necessity:
- Highway 10 from Brandon to Minnedosa
- Highway 59 from Brokenhead to Highway 11
- Highway 8 to Gimli
- Highway 3 to Winkler
Those last two highways could probably get by with just a few passing lanes here and there as opposed to full-length twinning. That's about another 80 km of twinning.
So with about 155 km of twinning, Manitoba's roads would be in good shape from that standpoint.
Contrast that with the number of highly deficient crash-prone intersections on major highways. By my count, these ones are brutally inadequate for the traffic volumes and speeds they handle:
- Highways 100 and 2/3
- Highways 100 and 330
- Highway 100 and Waverley (to be replaced by Kenaston)
- Highway 100 and St. Mary's Road
- Highway 100 and St. Anne's Road
- Highways 101 and 15
- Highways 101 and 59
- Highways 1 and 207
- Highways 59 and 202
- Highways 59 and 213
- Highways 1 and 10 (x2)
- Highways 1 and 16
- Highways 1 and 13
- Highways 1 and 248
Those are the ones that involve very busy intersections and badly-designed traffic lights on high speed routes. In other words, the dangerous intersections as opposed to merely inconvenient ones.
The fact that zero progress is being made on either of those lists (well, I suppose there are plans to twin 59 so at least that's going to move ahead) tells me that the situation is going to get worse before it gets better.