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I might be a moron here, but I have no idea how to interpret this. Is each blue bar the proportion of streets that run in that direction? Do the ones that just have a single bar at N/E/S/W have perfectly aligned streets that only go in the cardinal directions?
Here’s a portion of detroit:
The city is almost entirely grid, some of it at an angle. You can see these two grids visualized in the post.
Seattle too has a section that’s perfectly n/s. It was built upon infill created by destroying larger hills, flattening the city and filling in the bays. The older city is canted off at a strange angle, you can see the streets change directions at denny way near downtown.
Outside the downtown corridor everything is aligned NS iirc.
That’s my interpretation too.
Newer cities tend to be more grid like. Older European cities tend not to follow a grid.
Also, how is the direction assigned? Especially for streets that are not straight? For example taking a beginning and end and measuring their angle wouldn’t be very representative. And how does it work with long and short streets? Are longer more heavily represented, or do they count the same? I’d like it if it took a tangent to the street every 100 m or so, but somehow I doubt that’s what they did.
I had presumed it’s the angles of the intersections.
So basically angles of ends of streets. Well, there are many options and we just don’t know which one it is.
This might not be the best representation if you’re trying to depict “good” cities. Madrid is famous for having a very centrally planned and carefully considered grid, and yet the graph here looks like a mess.
Fun thing is that in Montreal, ‘North’ is refereed to as the direction where streets go away from the river, which ends up being the WNW, further from north than “East”.
Heh, yeah I was gonna make people guess which one was “north” for Montreal
Tulsa, OK is a trip. Perfect square mile grids for most of the city. Looks like a chessboard flying in at night.
Until you get out to the burbs, the streets are names crossed by numbers, everything regular… I used to navigate the whole town with one page from the phone book. Even when you get into numbers crossed by numbers, it still makes sense.
Which direction do your streets point on a compass?
Sao Paulo: yes.
The part that really pisses me off in America at least, is that once you get outside the nice ordered grids of the city, you start getting into subdivisions. They start having all of these curved nonsense roads instead of again, nice straight grid lines. I understand that sometimes you have to divert around a natural feature, but that doesn’t excuse them deliberately making neighborhoods all twisty and grounded off so that it’s easy to get lost in there. Stick to the grid system. And if any European complains about it, remind them that [insert rival European country] is better than their own country.
I knew Boston would be a mess, but Charlotte, you okay there??
I can’t function in a city with more than 20% of the roads being outside of the majority.
removed Boston (lack of) city planners, and apparently I need to avoid Charlotte like the plague of disease that must’ve been occurring when they “laid out” that city.
Well I mean that’s what’s going to happen when you have a city that’s laid out by a civilization who’s most advanced transportation technology is wagon.
That is really insightful
Are these taken from city center? I feel like San Francisco has much more north to south road than East to West.
The more linear, the worse the traffic flow.
Is that your guess, or is there a specific source that says that?
https://www.sciencedirect.com/science/article/pii/S0169204623002207
Its not entirely clear, but it can be seen that traffic is worse when you have 20 traffic lights for crossroads in a row… Or at least its logical. The cities that grew over time with circular planing have better capacity even on thinner roads, meanwhile grid cities have up to 8 lane roads (4 in 4 out) very often as their main road.
Its not 100% clear but its pretty likely that its one of the factors. Another one is public transport.
Berlin’s network shape is unfortunately reminiscent of a swastika…
I guess you see what you want to see.
It’s pretty obvious, it’s too bad the downvoters deny their own lying eyes.
