|
|
|
- Thread starter Daveography
- Start date
supplanter
Active Member
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.
policyenthusiast
Senior Member
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.
IanO
Superstar
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.
The_Cat
Senior Member
Edmonton Transit will probably complain.
roe_
Active Member
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.
northlands
Senior Member
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.
policyenthusiast
Senior Member
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.
VaultBoy
Active Member
I just try to remember that outside lane is for going right or straight only, and always yield to cars already in the circle
policyenthusiast
Senior Member
ADob
Active Member
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.
policyenthusiast
Senior Member
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.
Gronk!
Senior Member
I still want the traffic lights taken down at the 118 Ave/Groat Road "roundabout" - why oh why hasn't this been done yet???
yeggator
Active Member
Actually, this works fine. You’re right that within the roundabout, drivers in the right lane within the roundabout continuing past an exit have to yield to traffic in the left lane exiting the roundabout. However, it looks like drivers in the outer lane won’t be allowed to driver past the second exit. Hence, they only yield to inner-lane traffic when entering the roundabout (where they’d normally have to yield anyway).
Blizzard
New Member
Edmonton Transit reviewed years ago and is just fine, thanks.