Urban planning community

+ Reply to thread
Results 1 to 10 of 10

Thread: Parking lot islands and their relation to safety

  1. #1
    Cyburbian
    Registered
    Aug 2001
    Location
    Midwest
    Posts
    441

    Parking lot islands and their relation to safety

    I am looking for any studies on parking lot design, specifically to how parking islands improve safety (help to minimize auto accidents and/or auto-pedestrian accidents).

    Thanks!

  2. #2
    Cyburbian Raf's avatar
    Registered
    Feb 2007
    Location
    As far south of SoCal as I Will Go
    Posts
    5,115
    Quote Originally posted by Vlaude View post
    I am looking for any studies on parking lot design, specifically to how parking islands improve safety (help to minimize auto accidents and/or auto-pedestrian accidents).

    Thanks!
    They don't. Simply are there for visual and aesthetics. Reduction of speed and auto/ped collisions is a function of parking lot design (i.e. width of drive isles) and clearly labeled and delinted pedestrian paths of travel.
    follow me on the twitter @rcplans

  3. #3
    Cyburbian DetroitPlanner's avatar
    Registered
    Mar 2004
    Location
    Where the weak are killed and eaten.
    Posts
    6,247
    I concur with RAF. Not much in the way of crash reduction factors parking lot islands.
    We hope for better things; it will arise from the ashes - Fr Gabriel Richard 1805

  4. #4
    Cyburbian Plus Shellac And Vinyl VelocitY's avatar
    Registered
    May 2008
    Location
    North America
    Posts
    1,907

    NYC Parking Lot Design Standards (Including Interior Islands)

    New York City Government "Design Standards for Commercial & Community Facility Parking Lots":
    http://www.nyc.gov/html/dcp/pdf/park...ot_present.pdf

    The islands, many of which have trees, DO improve the safety, though indirectly and not easily measured. A few (probably obvious) instances:

    - Pedestrians are much less likely to walk between adjacent rows of cars because walking on/around the foliaged islands is a nuisance.

    - In the case study summary (last pdf page), there's an average 9.85% parking permeability increase. NYC has quite a bit of precipitation throughout the year; less "slick" parking lots = improved safety.

    - Average tree canopy coverage is 16.15% (case study summary). An uncomfortably warm, perspiring driver in a "sun baked" car may be more likely to have "road rage"--or "parking lot rage," as the case may be. Uncomfortably hot passengers in a "sun-baked" car may be more likely to annoy/distract the driver.

  5. #5
    Cyburbian
    Registered
    Aug 2001
    Location
    Midwest
    Posts
    441
    Raf, I agree with the idea that it is a function of design. That said, parking islands are a major part of design. As Seana noted the islands can create safer paths for pedestrians. Proper design with islands or other form of a barrier (bio swell) can reduce speeds and better direct traffic. How many times have we seen a person cut across a sea of asphalt or concrete ignoring those painted lane lines? I've seen a couple accidents take place under that scenerio, where I don't think the individual would have jumped a curb, etc. Keeping the vehicle in the drive aisles and reduced speeds would seem to reduce accidents. That said I have no statistics that back up my logic. There are a lot of variables...

    We had a discussion in a P&Z meeting and I was asked about studies related to parking islands and their correlation to safety/accident reduction.

    Seana, thanks for the info. I actually reviewed that document when I was preparing portions of a landscape ordinance. The document has some good info related to design.

    Thanks again everyone for the comments, if anyone comes across a study I'd be very interested in reading it.

  6. #6
    Cyburbian Plus Whose Yur Planner's avatar
    Registered
    Jun 2004
    Location
    Dixie
    Posts
    6,079
    Correct me if I'm wrong, but wasn't one of the justifications for parking lot islands was that they cut down on the heat island effect?
    When did I go from Luke Skywalker to Obi-Wan Kenobi?

  7. #7
    Cyburbian The One's avatar
    Registered
    Mar 2004
    Location
    Where Valley Fever Lives
    Posts
    7,324

    Back it in.....

    Keep the islands and make it back in parking. I have no idea if this exists anywhere.

    On a side note, I was (pleasantly) shocked to see that my employer uses back in parking in Stockton CA at the railyard
    Skilled Adoxographer

  8. #8
    Member
    Registered
    May 2013
    Location
    Minneapolis Minnesota
    Posts
    3
    Quote Originally posted by The One View post
    Keep the islands and make it back in parking. I have no idea if this exists anywhere.

    On a side note, I was (pleasantly) shocked to see that my employer uses back in parking in Stockton CA at the railyard
    I've never heard of back in parking but I think that's a very interesting idea. Can you explain a little more about how it works, And how you think it may increase pedestrian safety?

  9. #9
    Cyburbian DetroitPlanner's avatar
    Registered
    Mar 2004
    Location
    Where the weak are killed and eaten.
    Posts
    6,247
    Quote Originally posted by Quinn Haberl View post
    I've never heard of back in parking but I think that's a very interesting idea. Can you explain a little more about how it works, And how you think it may increase pedestrian safety?
    Less blind spots for drivers as they pull out. Back-in parking automatically makes you very aware of your environment while entering the spot.
    We hope for better things; it will arise from the ashes - Fr Gabriel Richard 1805

  10. #10
    moderator in moderation Suburb Repairman's avatar
    Registered
    Jun 2003
    Location
    at the neighboring pub
    Posts
    5,348
    Quote Originally posted by DetroitPlanner View post
    Less blind spots for drivers as they pull out. Back-in parking automatically makes you very aware of your environment while entering the spot.
    Also, makes it much safer to pull out because both the vehicle pulling out and vehicle in travel lane can see one another. Also, it is safer if the street also has a lot of bicycle traffic.

    I haven't seen it done in a parking lot, but I've seen it as on-street parking in several cities. Austin has done it on a couple of major thoroughfares now.

    "Oh, that is all well and good, but, voice or no voice, the people can always be brought to the bidding of the leaders. That is easy. All you have to do is tell them they are being attacked and denounce the pacifists for lack of patriotism and exposing the country to danger. It works the same way in any country."

    - Herman Göring at the Nuremburg trials (thoughts on democracy)

+ Reply to thread

More at Cyburbia

  1. Replies: 20
    Last post: 19 Dec 2005, 7:31 AM
  2. Parking lot islands
    Design, Space, and Place
    Replies: 10
    Last post: 03 Sep 2004, 7:23 PM
  3. Replies: 9
    Last post: 16 Mar 2004, 5:46 PM
  4. Parking lot safety [Temp 1]
    Make No Small Plans
    Replies: 1
    Last post: 08 Sep 2003, 8:07 PM
  5. Replies: 0
    Last post: 03 Apr 1997, 2:20 PM