Quote:
Originally Posted by Richard Eade
I'm a bit confused by the road re-alignment in Harley613's picture: I was under the impression that they were building a new west-bound lane closer to the river and the east-bound traffic would move to the existing west-bound lanes. This would move the traffic away from the construction zone.
Once the tunnel was finished, the four lanes of the roadway would be placed on top of the tunnel alignment, far from the river.
In the picture, it appears as if the west-bound lane has been moved to beside the existing east-bound lanes at the Transitway intersection, and, in fact, is further from the river for most of the new roadway section.
Does this mean that another new set of lanes needs to be build for the east-bound traffic?
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What is happening is more a 'realignment' of the westbound lanes rather than building a whole new lane. Previously the roadway was quite curvy/wavy, with some portions close to the river and other portions further away. What they have done is straightened the westbound roadway using some of the old sections and joining them with some new sections, thus getting it closer to the river.
In the next steps they should move the eastbound lanes closer to the river as well, using a combination of new joining sections and some of the old sections of the westbound lanes.
After that, as you've mentioned, the trench is dug, LRT goes in, trench is covered over, and the roadways are moved back on top of the LRT trench.
Where the transitway joins the Parkway is a little more confusing, but this is still an intermediary step to my understanding. I believe this is so that they can work on the detour route from Workman Avenue onto the Parkway, after which everything will be shifted towards the river again during LRT construction, only to be shifted back after LRT is buried.
Edit: Perhaps this
image might help visualize how things will progress. It shows more the final solution rather than all the intermediary steps, but might still help explain things.