News   GLOBAL  |  Apr 02, 2020
 10K     0 
News   GLOBAL  |  Apr 01, 2020
 42K     0 
News   GLOBAL  |  Apr 01, 2020
 5.9K     0 

A new roundabout has started construction at 66 St and 167 Ave
1749220373110.png
 
Nice! Does anyone know the last time we’ve had a major intersection retrofitted with a roundabout? I know they’ve sprung up on collectors and some new arterials, but I can’t think of one that has replaced signals.
 
These are all the rage these days... 'turbo roundabouts'. I've seen a few and they are intended to speed things up, but are even more confusing it seems.
 
Can someone explain to me why Edmonton roundabouts are like this? Normal roundabouts are right lane to go right, left lane to go through or left.

Every roundabout has a high collision warning because allowing the right lane to go straight creates 4 yield locations inside the intersection.
Is this correct? I feel like I saw plenty of roundabouts in Australia that worked exactly like this one. Problem here is drivers that don't understand how they work and careen through them without caution.
 
Can someone explain to me why Edmonton roundabouts are like this? Normal roundabouts are right lane to go right, left lane to go through or left.

Every roundabout has a high collision warning because allowing the right lane to go straight creates 4 yield locations inside the intersection.
Transportation engineers like 'em for intersections where a lot of the traffic travels straight so it allows for higher traffic volumes rather than everyone jammed into one lane. The resulting accidents are usually fender benders without significant injuries so it's viewed as more of an acceptable risk.
 
Is this correct? I feel like I saw plenty of roundabouts in Australia that worked exactly like this one. Problem here is drivers that don't understand how they work and careen through them without caution.
Could be. Roundabouts in Southern AB were always in the form I described, to the best of my knowledge. I had never seen this variety until moving to Edmonton.
 
I really wish the city would do something with the squashed semi-roundabout monstrosity at 118 ave and 101 st by NAIT. It is neither fish nor fowl and it engenders distressing depths of driver derpitude - I have never seen so many people negotiate a roundabout as poorly as they do there. It should either have lights added, like they did in Sherbrooke, or be completely rejigged as an intersection. I'm not a transportation engineer but I can't think of a less intuitive solution in the city.
 
I really wish the city would do something with the squashed semi-roundabout monstrosity at 118 ave and 101 st by NAIT. It is neither fish nor fowl and it engenders distressing depths of driver derpitude - I have never seen so many people negotiate a roundabout as poorly as they do there. It should either have lights added, like they did in Sherbrooke, or be completely rejigged as an intersection. I'm not a transportation engineer but I can't think of a less intuitive solution in the city.
Roundabouts are objectively the safest form of intersection, and as soon as they try to "dumb them down" they make them far more confusing. On a related note, if they're going to chew up an intersection to make a roundabout, couldn't they make it somewhere with higher traffic? It seems like they chose this location at random.
1749481704914.png
 

Back
Top