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Find the flattest route between any two points in SF

https://flattensf.com/
45•ishan0102•1h ago

Comments

pokpokpok•56m ago
The wiggle!

(in honor of my old commute, which I miss)

https://flattensf.com/#t~-122.40850~37.77493~-122.50940~37.7...

tedd4u•56m ago
Cool! Any way to toggle on street names on the map?
mvkel•53m ago
Absolutely love the live profile updating when you swipe from flatter to shorter.
Terr_•51m ago
> The slider runs along the whole trade-off between distance and climbing [...] Climbing is cumulative gain

Another mechanism might be a kind of user-defined cost-curve, where a gradual climb to 10 might be preferred over a steep climb to 8, etc.

jeffbee•35m ago
You want OpenTripPlanner. Their triangle lets the user trade distance, climbing, and safe facilities.

https://github.com/opentripplanner/OpenTripPlanner

https://github.com/opentripplanner/OpenTripPlanner/blob/dev-...

danserfaty•47m ago
It's not accurate. I mapped it from my house on Cabrillo St in the outer Richmond to 4th avenue and it says I need to climb 25th avenue then walk Geary instead of correctly telling me to use 23rd avenue that is completely flat.
jeffbee•17m ago
I think this comes down to the DEM they are using. I think it would have come out better if they had used USGS 3DEP DTM at 25cm.

Edited: which apparently is hosted for free on AWS S3.

qurren•38m ago
Doesn't Google Maps in bicycle mode already do this?
Arainach•9m ago
There are many constraints to satisfy, and avoiding hills is but one of them.

Most of us would take a hill with a protected bike lane over a flat 45mph.

fnord77•16m ago
Try downtown to somewhere in Bernal, say Progressive Grounds coffee house.

The flattest route is only 0.2 miles longer than the shortest, but goes from 200ft of climbing to 500ft of climbing, 12% max grade to 22% max grade.

Apple maps picks the shortest every fucking time.

Beam: Reflection's 501B open-weight model

https://reflection.ai/blog/introducing-beam
241•Philpax•3h ago•66 comments

Find the flattest route between any two points in SF

https://flattensf.com/
49•ishan0102•1h ago•11 comments

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16•01-_-•1h ago•0 comments

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