There's one just like this North of Hatton Cross Station (just outside the perimeter road of Heathrow Airport) ...
Magic Roundabout (Swindon)
151–160 of 199 posts
Re: Magic Roundabout (Swindon)
#152Earlier quoted context omitted.
Maybe the aerial imagery is out of date? It looks like a regular intersection on the satellite view, but Google Maps has it marked as a roundabout.
This is interesting, I seem to be getting newer aerial imagery than either of you https://i.imgur.com/tC6fsQm.jpg
If you switch to globe view, the image changes.
Re: Magic Roundabout (Swindon)
#153Re: Magic Roundabout (Swindon)
#154Metrics at work: >however, the roundabout provides a better throughput of traffic than other designs and has an excellent safety record, since traffic moves too slowly to do serious damage in the event of a collision .
Indeed! This is a great example of why it's important to actually measure the things you care about, and not use a proxy or your gut feeling. If you just go by perception, the slower-moving traffic might fool you into thinking the roundabout has less throughput.
Re: Magic Roundabout (Swindon)
#155I build maps for a living. This roundabout complex has been a test case for map building systems for at least the last fifteen years. It's positively brutal in its special cases.
Re: Magic Roundabout (Swindon)
#156Earlier quoted context omitted.
I don't understand how the turbo roundabout is any different than a typical two-lane roundabout. It looks like a regular two-lane roundabout from that picture in your link.
I think it just is a regular two-lane roundabout? We have one of these nearby me in Cleveland, it works pretty well. https://www.google.com/maps/place/41%C2%B027'58.2%22N+81%C2%...
This is a very elaborate version of the turbo roundabout, checking out streetview might help.
https://www.google.com/maps/place/Energieweg,+Nijmegen/@51.8...
Re: Magic Roundabout (Swindon)
#157That's not even the best "Magic Roundabout", the one in my town is much better! https://en.wikipedia.org/wiki/Magic_Roundabout_(Hemel_Hempst...
Ha, I learned to drive around there in the late 90s, absolute nightmare.
But I'm pretty fearless these days!
Re: Magic Roundabout (Swindon)
#158A better solution for high traffic flow is the turbo roundabout[0] which is getting increasingly popular in Netherland. Before you enter the roundabout, you select the lane for the direction you want to go. You only cross traffic when entering the roundabout for the first time. After that, you simply follow your lane and it delivery you where you want to go. It looks complicated from above, but it's very simple once…
This[0] is a very elaborate version of the turbo roundabout, checking it out in streetview might help. But basically the roundabout functions more like a standard junction with room to choose a direction before turning (I don't think there is an English translation for "voorsorteren", or sort before...).
[0] https://www.google.com/maps/place/Energieweg,+Nijmegen/@51.8...
Re: Magic Roundabout (Swindon)
#159A better solution for high traffic flow is the turbo roundabout[0] which is getting increasingly popular in Netherland. Before you enter the roundabout, you select the lane for the direction you want to go. You only cross traffic when entering the roundabout for the first time. After that, you simply follow your lane and it delivery you where you want to go. It looks complicated from above, but it's very simple once…
The only "downside" with these is in case of an emergency vehicle entering the roundabout. In a "traditional" roundabout, all motorists could perform an extra round and thus clear the roundabout fast and easy. This doesn't work that great in these kind of roundabouts, I guess.
Works just fine in the real examples of these roundabouts, this[0] is a better example which is widely implemented in the Netherlands. The bollard thingies are really small, but don't encourage driving over them. Emergency vehicles can go over just fine.
[0] https://www.google.com/maps/place/Energieweg,+Nijmegen/@51.8...
Re: Magic Roundabout (Swindon)
#160A better solution for high traffic flow is the turbo roundabout[0] which is getting increasingly popular in Netherland. Before you enter the roundabout, you select the lane for the direction you want to go. You only cross traffic when entering the roundabout for the first time. After that, you simply follow your lane and it delivery you where you want to go. It looks complicated from above, but it's very simple once…
This style exists in the UK too: near where I group is https://maps.app.goo.gl/hjhi3gQijUGnuXha7 and a bunch of others like it: five roads in and out, with lanes that naturally flare out (though with the option to cut over right to continue further round). Quite intimidating when you're learning to drive. That said, my recollection is that the default in the UK is that lanes flare out from the center, so that once yo…
Having lights there defeats a lot of the roundabout. The turboroundabout definitely does not have traffic lights. Look at this[0] implementation, the one you linked qualifies as a "turboplein".
[0] https://www.google.com/maps/place/Energieweg,+Nijmegen/@51.8...