midi-roundabout.co.uk

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Mini-roundabouts at Crossroads

http://www.mini-roundabout.com/crossroads.html

My apologies to overseas viewers who can install mini-roundabouts of any size. Here in the UK we have a rule that limits the size of the central island to just 4m diameter. This has caused serious problems and lost many potentially useful sites. Some authorities will not now install mini-roundabouts at crossroads as a matter of policy. Some Drawings of idealised layouts to illustrate deflection problems. Other factors such as road widths on entry and exit, flare, etc. In this series of drawings with redu...

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Mini-roundabouts - getting them right! - TRL report - Accidents at urban mini-roundabouts

http://www.mini-roundabout.com/trlreport.html

Accidents at urban mini-roundabouts. Report 281 by J V Kennedy (TRL) and R D Hall (University of Southampton). Abstract (from the report). The TRL sites showed accidents of many kinds which I did not seem to get; in particular:. Merging - I had none. Shunt accidents on approach - I had very few. Single vehicle accidents - I had very few. Pedestrian accidents - I had very few. These accidents are often associated with failure of drivers to appreciate the. Approaches on my detailed design page. Merging acc...

penntraff.co.uk

Penntraff Traffic Engineering - Conferences, Seminars and Presentations

http://penntraff.co.uk/conferences.html

Conferences, Seminars and Presentations. Travelled to Bangkok (2007), Abuja (2008), Kansas (2008) and Carmel, Indiana (2011) to make presentations at various conferences. It is alarming to see just how poor the standards of road safety are in many developing countries. Is probably best known for the training seminars on mini-roundabouts. This is a particular expertise of PennTraff since publication of Mini-roundabouts - Getting them right! The modern roundabout does not appear to have arrived in many cou...

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Comments on DfT & CSS good practice guidance

http://www.mini-roundabout.com/dftcss.htm

Mini-roundabouts - good practice guidance. Department for Transport and County Surveyor's Society. This document sets out to provide guidance on the use of mini-roundabouts. It is not a design guide but it does look at various points that may or may not indicate whether a mini-roundabout is the correct solution for a given site. BUT THERE SHOULD BE NO OTHER DIFFERENCES. The table below identifies other points of concern. This is my main concern as it overemphasises a difference that should not be there&#...

mini-roundabout.com

Mini-roundabouts - getting them right! - A vision for the new Millennium

http://www.mini-roundabout.com/vision.html

Mini-roundabouts - Getting them Right! A vision for the new Millennium. Careful use of mini-roundabouts can hold the key to making our communities more liveable. In my experience it has proved possible to achieve good results in small towns and villages using mini-roundabouts and traffic calming to make the whole environment more pleasant for everyone. Shenley Road, Borehamwood. This scheme won the Urban Street Environment. Award in 1994, below are two images. A view from the car. These speed tables,...

penntraff.co.uk

Penntraff Traffic Engineering - Recent Projects

http://penntraff.co.uk/projects.html

PennTraff continues to undertake various projects in both the private and public sectors. Brockley Cross, Lewisham. This is a very densely trafficked site! The traffic capacity is so good that exits are often observed to block. The accident rate is not that high but any improvement should reduce the numbers. It is unusual at any mini-roundabout to observe the three right turns occurring at the same time,. But this is happening at the far mini-roundabout. Halfway Street/Willersley Avenue, Bexley. It was p...

mini-roundabout.com

Mini-roundabouts - Getting them Right!

http://www.mini-roundabout.com/index.html

Mini-roundabouts and Traffic Calming. Comment on TD 54/07. DfT and County Surveyors' Society. Good practice guidance 2006. Problem sites from the seminars. We now have a FREE discussion forum on Yahoo! By Clive Sawers MA MICE CEng, Traffic Engineering Consultant. Welcome to Mini-roundabouts - Getting them Right! See links below right to videos of mini-roundabouts in the USA. Contact me: penntraff@aol.com. Why is this website necessary? Mini-roundabouts are being used where they should NOT be:. There seem...

penntraff.co.uk

PennTraff Specialities

http://penntraff.co.uk/specialities.html

Mini-roundabouts and normal (or modern) roundabouts. Will advise on the use and design, and improvements of roundabouts of all sizes anywhere in the world. For more information, visit. Recent check-backs to traffic calming schemes in Gillingham, Kent indicate much lower crash records today than there were leading up to the schemes' introduction. The arrival of www.crashmap.co.uk. Has been most helpful in this regard. Instrumental in the implementation of the Canterbury Park and Ride project and assessmen...