Thu 1 Dec 2005
Round and Round; Or, How Not to Design a Parking Garage
Posted by Jonathan under headware (digg this)[16] Comments
My work day got off to a perfect start when I pulled into the parking garage. A quickly-printed sign was taped to the card reader. It read something like this:
Please do not drive the wrong way down the garage ramp. The ramp is for driving up and for parking. People have complained and there have been several near accidents.
This particular garage’s floors are laid out in the form of a bisected square. Looking at it from above, the left, top, and bottom sides of the square are flat. The right side is the down ramp, and the middle side (!) is the up ramp.
The traffic flow for going up is as follows:

- drive up the middle
- take a sharp left
- drive along the left side
- take another sharp left
- repeat until you reach your floor
(Most of my cow-orkers and I have been banished to the top floor, but that’s a subject for another post.)
At the end of the day, here’s what you do instead:

- drive along one side of the square
- drive along another side of the square
- drive along another side of the square
- finally drive down the “down” side of the square
- repeat until dizziness and impatience make you crash into something
If you followed all that, you may have an idea why someone felt it necessary to write the note. See, at the end of the day, leaving the top floor, tired and hungry, the last thing you want to do is drive around and around in circles, only going down one-fourth of the time. So you cheat.

You go down the down ramp, make a sharp left, go down the up ramp, make another sharp left, and go down the next down ramp. Et voila: you’ve just dropped three floors in less time than it would take to go down one floor the proper way. It’s late, the garage is over half empty, no one is coming up, and no one parks on the upper floors anyway, except us few poor sods. They keep the rates too high, so the garage is never more than two-thirds full.
The urban geniuses that laid out the garage ignored one crucial thing: people are in a hurry at the end of the day. They’re out of patience. They want to get home and see their families and eat. Yet the proper procedure forces you to take the long way down when you least want to.
It would have been so easy to lay out the flow the other way, so that going up was longer than going down. In a perfect world, they would have installed electronic direction arrows at the corners of each floor, so that up was shortest in the morning and down was shortest in the afternoon. The main thoroughfares to the Charlotte Coliseum (and probably a lot of arenas in larger cities) do just that. Each lane has a programmable traffic light above it, so that lanes can switch directions as conditions dictate. Yes, I know that would cost an arm and a leg. OK, so how about at least using signs that say “turn this way before noon and that way after noon”? Trust our intelligence a little, and most importantly, make it look like you care.
You might say that would invite chaos, and that people would just ignore the signs. Isn’t that what’s happening anyway? I talked to a cow-orker on his way out this evening. He ignored the memo and took the short way down. I can’t say I blame him. When businesses make policy that ignores their customers’ (or employees’, for that matter) needs and wants, rebellion ensues.
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Many times at work I wonder if the person who has designed the protocol for a given task has any actual experience doiong it, or if they are going by “the book”. This is another example of that. Michele sent me.
A few months ago I found this site, and realized that the very odd design of that garage isn’t even represented here. It’s closest to the top right, but all traffic is one way. Meh.
Feh even.
bryan,
I think we can all agree this design is horrible and the reason it’s not represented on that site is because somebody that knew what they were doing wouldn’t create a design that rewards people to go the wrong way.
What an inefficient layout. That’d result in one side of garage having more cars than the other, or having to make loops of each floor to find a space when it’s busy. Entrance should be longer, to allow people to find spaces, and exit should be quick.
A simple fix? Make the half-loop system for going down, and force people to drive the full loops going up. Of course, then you’ll be whining about having to leave for work five minutes earlier
Peter:
> What an inefficient layout. That’d result in one side of garage having more cars than the other…
That’s exactly what happens. In fact, drivers are encouraged to turn the wrong way when going up, because there are more empty spaces to the right.
> Entrance should be longer, to allow people to find spaces…
I hadn’t thought of that one. Nice catch.
In any case, I’m going to see to it that the garage manager finds a link to this post.
the “geniuses” who designed that parking lay-out did so because they knew they would never park there! they just went about “designing” and didn’t consider everyone else.
here via michele today. thanks for dropping by. enjoy your weekend!
does anyone else find it ironic that such poor planning and idiocy is part of the process of getting to and from work (read: yet more idiocy?) wow. i just re-read that sentence and realized i’m obviously a bit jaded. i experience similar silliness at both my work and the parking garage attached to it. we, however, are regaled with this directive, which is posted randomly throughout the month on odd and then even garage floors:
!!??!?!?! We at first thought they were concerned about theft and so wanted us to keep the swiper cards with us. But the last line always rules that out. So you can imagine how fun it is at the end of a day — when you are shortcutting to get to the bottom floors faster — we must wait in line behind someone who actually FOLLOWS this directing and has to get out of the car and pull the swiper card from their back pocket. Or…worse yet…the woman who has just tossed it in her very messy purse and has to rummage around to find it.
Just as you have found the shortcut in parking layout, we have found the shortcut in parking swiper-card etiquette –KEEP IT IN THE CAR!
i’m visiting from michelle’s today — but i’ll be back on my own. love your site!
Wouldn’t you just keep the card in your wallet in that case? Much like how you use your credit card many times each day, so you can with the parking card.
It’s not a bad idea to keep the card on you, after all, since someone could steal your car and have an easy ride out of the parking lot.
ah, yes. if only it were that easy. the card, of course, is not a normal credit card size. it is an oversized square. and we are back to the problem of poor design…
No offense, folks, but the garage is TERRIBLY efficient. It’s just not efficient FOR US. It’s cheaper to BUILD it that way (ramps are more expensive), for one thing, lowering cost (and therefore increasing potential profits). And, it’s clear from the author’s comment (he doesn’t like his parking space but he parks there anyway) that the builder/owbner might have assumed he would have some sort of monopoly or at least significant pricing/barriers to change powers to justify lowering costs at the expense of trapped customers.
I’m not saying I like it…but the customer is NOT the only person in the system. Systems tend to reach equilibrium (hoever tenuous) based on varying TOTALS of satisfaction.
Design’s impact on customer sat is just one of the variables…
Having driven in the garage, Mark, I disagree. There are at least 3 ways the garage could be made more efficient without changing the structure at all.
1) The center lane could be up in the morning, down afternoon.
2) The center lane could be two-way.
and at the very least,
3) They could reverse the traffic so that Peter Cooper’s observation that the entrance flow is longer than the exit.
Even easier, why not just take public transportation? You’d avoid all those hassles. The only reason I could think there’s a multi-story parking is because it’s in an urban area. Where there’s an urban area, there’s usually public transportation.
Public transportation is great for urban-suburban or intra-urban travel, but it kinda sucks for suburb-suburb travel or most rural-urban travel. If you live ten miles out of town, then there’s not usually an alternative to driving all the way in.
Unless I lived within a ten minute walk of a subway station, I think I’d always put up with expensive and inefficient parking than public transport
I agree that people are in a hurry and wanting to get home at night, but as a person who is only connection with fashion is being fashionably late I appreceiate it being faster to get in.
The route for getting in should take you through more areas to find an empty spot. Jonathan, for whatever reason, has been banished to the top so he goes immediately up there and so has the full roundabout experience to grouse about every working day. He is not concerned with getting in because he has to run all the way to the top and he can do it quickly.
If a trip to the top took as long as the trip to the bottom does now then the complaint would simply be reversed.
I’ve gotten caught in parking garage exit traffic after trade shows and sporting event, and you make a damn good point.
Even from a safety standpoint, being able to evacuate a parking garage faster would present some serious advantages.
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