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Thread: Road design, traffic speed, traffic calming

  1. #1
    Cyburbian SGB's avatar
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    Road design, traffic speed, traffic calming

    Two related questions for this group:

    1) Does anyone have some good online sources for empirical studies on the correlation of paved road width to average traffic speed?

    2) Online sources for traffic calming techniques for use on arterial roads w/ multi-use (bicycles, pedestrians, etc) wide (5 feet) paved shoulders? The goal is calming on the vehicular lanes w/out inhibiting non-motorized traffic flow on the multi-use shoulders.

    Geography & climate of subject area is:
    NW Washington State
    Avg. annual snowfall of 11.5".

    TIA for any leads.

  2. #2
    Cyburbian nerudite's avatar
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    I don't know if these are online. The first example has an e-mail address for an online contact.

    Narrow Residential Streets, Do They Really Slow Down Speeds? A paper reporting results of a San Francisco survey which showed a correlation of traffic speed to street width. By James A. Daisa and John B. Peers, ITE 6th Annual Meeting Compendium of Technical Papers, 1997. James Daisa can be reached at j.daisa@fehrandpeers.com

    The Relationship Between Residential Street Design and Pedestrian Safety. A paper which examines the influence of the streetscape on traffic speeds. By Joni L. Giese, Gary A. Davis and Robert D. Sykes. Presented at the ITE 6th Annual Meeting Compendium of Technical Papers, 1997. I have been unable to determine how to acquire this paper.

  3. #3
    maudit anglais
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    I haven't gone through this thoroughly, but this link looks like it might help with the traffic calming stuff

    http://www.ite.org/traffic/index.html

    If I have time, I'll try to find some other links. Most of my stuff is hardy copy.

  4. #4
    Forums Administrator & Gallery Moderator NHPlanner's avatar
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    Originally posted by Tranplanner
    Most of my stuff is hardy copy .
    Off-topic:
    Another Canadianism?

    It's not nearly as catchy as clube though....
    "Growth is inevitable and desirable, but destruction of community character is not. The question is not whether your part of the world is going to change. The question is how." -- Edward T. McMahon, The Conservation Fund

  5. #5
    maudit anglais
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    Originally posted by NHPlanner


    Another Canadianism?

    It's not nearly as catchy as clube though....
    That's so funny NH, I may print it out so I have a hardy copy on my desk

  6. #6
    Forums Administrator & Gallery Moderator NHPlanner's avatar
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    Originally posted by Tranplanner


    That's so funny NH, I may print it out so I have a hardy copy on my desk
    Off-topic:
    Ahhhh...the renowned Canadian humor that I recall from the last few posts in Mary Poppins' re-introduction thread.

    http://www.cyburbia.org/forums/showt...&threadid=6109


    Ok...I'm done hijacking the thread.
    "Growth is inevitable and desirable, but destruction of community character is not. The question is not whether your part of the world is going to change. The question is how." -- Edward T. McMahon, The Conservation Fund

  7. #7
    Cyburbian JNL's avatar
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    Try this TDM encyclopedia

    and this

    and especially this!

  8. #8
    Cyburbian permaplanjuneau's avatar
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    Juneau, AK
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    online resource for everything

    Try www.envisionutah.com. Under "Resources," go to the toolbox for quality growth. They've got charts, graphs, photos, and all kinds of "hardy" evidence for street width/accident correlation. Of course, this response is more than a year after-the-fact, but hey, maybe it will help someone else someday...

  9. #9
    Cyburbian iamme's avatar
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    Milwaukee
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    If you're interested in traffic calming, have you considered the road markings or road materials effect?

    I know in my area the marking for some freeway ramps has been changed so that the driver is tricked into thinking they are going faster. Thus, drivers slow down (not much) when they encounter these markings.

    Also, varying pavement at intersections, mid-block pedestrian access, or on small lanes can be an effective way to calm traffic. Hope this helps.

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