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The plan for this page is to post information on questions and answers typically asked by people wanting to start a local group and work with their local gonvernment and public works to plan and improve cycling in their area. There are lots of progressive cities out there which have done a lot of research and testing of what works, and what doesnt when planning paths, traffic control trail planning and other issues. Our goal is to collect the best ideas and create a resource for local advocacy groups. If you have Question (or an Answer) ,
let us know!
Questions
What can be done to make narrow streets more bike-friendly ?
Where can business/cities buy Bike Racks ?
Are there scientific ways to evaluate and improve "bike-friendlyness" ?
What information is available for the design of "good" RoundAbouts?
What information is available to restrict/refine the use of rumble strips?
What can I present to my local city/county to encourage better shoulders?
How do I find out who my Senate and House representatives are?
Answers
Q: What can be done to make narrow streets more bike-friendly ?
Many cities have streets that are not wide enough to provide a safe shoulder for motorists to pass a cyclists with 5' of clearance. A device which has been used in Europe for a while has been gaining popularity in the US is the In lane Shared Use Arrow, or 'Sharrow'. A Sharrow usually consists of a large chevron showing correct direction (with traffic) with a bike symbol applied mid-lane to the street surface.
Sharrows have now been evaluated and used in a number of US cities like San Francisco, Chicago, Seattle, Portland and others with various configurations, and recently (Jan 2007) been approved by the National Committee for Uniform Traffic Control Devices. The design guildelines will be introduced in the next revision of the MUTCD manuals, and begin filtering their way to common use by State and City Public Works departments.
Sharrows are intended to be placed in Traffic Lanes to educate both motorists and cyclists as to correct and safe positioning when there is not room for a motorist to pass safely. It is typically considered in situations where the speed limit is 35mph or less, and total lane width is 13' or less, or heavy streetside parking is present, and there is significant use by cyclists. The positioning of the Sharrow symbol is intended to indicate that cyclists can and should be mid-lane and act as vehicles for maximum safety, visibility, and avoiding car doors.
You can read more about these Sharrows and
the endorsement
by the National Comm for Uniform Traffic Control Devices online, or by doing a quick Google search on 'City Sharrow safety' to read about how other Cities are installing the symbols.
Q: Where can business/cities buy Bike Racks ?
When trying to convince a business or City to go out and buy Bike Racks, they typically say they don't know where to get them... Well, a 2 minute search online will yield lots of results. A couple that you might want to have handy for reference are:
Q: Are there scientific ways to evaluate and improve "bike-friendlyness" ?
The short answer is "yes."
Thanks to federal studies, there are resources for planners to evaluate "friendlyness" with some scientific metrics, and assistance in developing and prioritizing improvements. The results of this research effort are documented in two FHWA documents. The Bicycle Compatibility Index: A Level of Service Concept, Implementation Manual (FHWA-RD-98-095) provides practitioners with a guide to using the BCI methodology along with several real-world examples. Development of the Bicycle Compatibility Index: A Level of Service Concept, Final Report (FHWA-RD-98-72) documents the research project including validation of the video data collection technique, field data collection procedures, and results of the data analysis.
For more information about this research effort and the subsequent reports, please contact:
Carol Tan Esse, Federal Highway Administration
Phone: 202/493-3315
E-mail: carol.tan.esse@fhwa.dot.gov
Q: What information is available for the design of "good" RoundAbouts?
I'm still looking..... ;)
I did find some material on design guidelines for BIG roundabouts at http://www.tfhrc.gov/safety/00068.htm but so far have not turned up much on the "mini" roundabouts that are popular with some local traffic calming planners.
There is one other reference I have found, but not reviewed:
Mini-roundabouts: Getting them right by Clive Sawers published by
EMC Euro-Marketing Communications
94 High Street
Wingham Canterbury Kent
CT3 1DE UK
Phone/fax number 01227721142
penntraff@aol.com
http://www.mini-roundabout.com
If you know of any other good studies and evaluations with respect to effectiveness and bike safety, let us know!
Over the last several years in working with various groups and designs, we have come up with a short list of elements that should be considered in what WE would call good design for motorists and cyclists:
- signage on all lanes approaching: 'road narrows' plus 'yeild to bikes'. This give cyclists notice to merge left into traffic lanes, and motorists to expect them midlane.
- in-lane Sharrow symbols just prior to roundabout, and between all legs. Re-enforcing correct positioning and direction or cyclists and motorists negotiating the circle.
- mountable curbing/apron on inside of circle, but NOT flush. Need to provide drive thru capability for long trucks and emergency equipment at low speeds, but NOT motorists cutting the corner at high speed.
- low landscaping, rocks, reflectors, or other features to discourage straight driveover across center, but not big or solid enough to cause injury accident if struck.
Q: What information is available to restrict/refine the use of rumble strips?
Q: What can I present to my local city/county to encourage better shoulders?
The AASHTO Guide for the Development of Bicycle Facilities notes that in rural areas "adding or improving paved shoulders often can be the best way to accommodate bicyclists" and they have the additional attraction of providing a variety of benefits to motorists and other road users as well. (www.odot.state.or.us/techserv/bikewalk/whyhave.htm)
Critical dimensions
Less than 4 feet (1.2m): any additional width of paved shoulder is better than none at all, but below 4 feet a shoulder should not be designated or marked as a bicycle facility.
4 feet (1.2m): minimum width to accommodate bicycle travel measurement must be of useable width and should NOT include the gutter pan or any area treated with rumble strips
5 feet (1.5m) or more: minimum width recommended from the face of a guardrail, curb or other barrier
Widths should be increased with higher bicycle usage, motor vehicle speeds above 50mi/hr, higher percentage of truck and bus traffic. Further guidance on the appropriate width of shoulders to accommodate bicyclists on roadways in these situations can be found in FHWA's Selecting Roadway Design Treatments to Accommodate Bicyclists.
Wisconsin DOT has a policy of providing a three foot paved shoulder on all highways with an average daily traffic in excess of 1,000 vehicles, and this is widened to five feet if a moderate number of bicyclists regularly use the road. See page 38 of the WisDOT State Bicycle Plan.
http://www.dot.state.wi.us/dtim/pdf/bikeplan.pdf
Q: How do I find out who my Senate and House representatives are?
You can look them up using your 9-digit zip code at
www.vote-smart.org. If you dont know your 9-digit code, you can look it up by entering your address at
www.mapquest.com. You can use the links at vote-smart to find out a lot about your national and state representatives including their voting records and contact information.
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