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Ask HN: What are you working on? (February 2025)

261 points david927 | 1 comments | 23 Feb 25 23:00 UTC | HN request time: 0.215s | source

What are you working on? Any new ideas that you're thinking about?
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mavamaarten ◴[24 Feb 25 07:09 UTC] No.43156614[source]▶
I live next to a school, so there's a low speed limit (30 km/h). Still, people drive like race drivers and the city hasn't ever responded to the residents' hopes of introducing a speed camera.

I wanted to have some data on how many people speed, the max speed recorded, that sort of thing. Things the city should be doing after many complaints of dangerous driving and people being almost killed on zebra crossings.

I have a doorbell camera, and by analysing the footage using OpenCV and some code, I can track how fast people drive if you see how fast they move between two known points.

Average speed: 46 km/h :(

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fiftyacorn ◴[24 Feb 25 09:22 UTC] No.43157443[source]▶
i think part of the problem is 30mph/48kmph doesnt feel fast - and to get people to drive slower manufacturers need to design cars so 20mph/32kmph feels faster
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1. Cthulhu_ ◴[24 Feb 25 13:29 UTC] No.43159326[source]▶
Ironically, the lower you are to the ground, the faster it feels - everyone should drive a sports car!

(conversely, I drive a motorcycle sometimes which puts my head at or just over roof height of most cars, it makes 80 km/h not feel as fast. Mind you, the added road overview also helps)

Anyway. Narrow / winding roads and speed bumps will definitely make you want to drive slower. We have 'cars are guests' roads inside cities too, which are roads designed and coloured like bike paths (= red asphalt).

But the opposite is also true; I got a speeding ticket once, the road was a 4 lane, separated directions asphalt ring road... but the speed limit was 50 km/h.