# Ethan Mollick builds a map of fastest US city routes with Opus 5.5

> Original title: I had Opus 5.5 create a site where you can see the fastest routes into every city in the US, figure out where in America is fairest to me...

- Source: Ethan Mollick
- Published: 2026-11-02T20:01:39.000Z
- Bad Influence: https://badinfluence.news/items/b70sef19gfhv00qzc437o2wpw
- Original: https://x.com/emollick/status/2117346417979384162

## Summary

Ethan Mollick says he had Opus 5.5 create a site showing the fastest routes into every US city, plus fair meeting points and city "watersheds." He says it was inspired by the defunct Arterial Mapping site.

## Post

I had Opus 5.5 create a site where you can see the fastest routes into every city in the US, figure out where in America is fairest to meet up, see the "watersheds" of the largest cities, and more: https://all-roads-lead-to.netlify.app

(Inspired by the defunct Arterial Mapping site)

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHWJS_tFW4AAgVVL.jpg&mode=thumb&exp=1793836800&sig=a938fe17ec2f9629)

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHWJTEE4W0AAbOVp.jpg&mode=thumb&exp=1793836800&sig=45ff4f3b787a0826)

![](https://badinfluence.news/api/img-proxy?u=https%3A%2F%2Fpbs.twimg.com%2Fmedia%2FHWJTFBDXEAAtj3Q.jpg&mode=thumb&exp=1793836800&sig=02ccaa26d2e58b91)