Chronology Maps
Click a section name to see full details and a map.
| Completed | Route | Name | Start | End | Original number | Other numbers |
|---|---|---|---|---|---|---|
| M4 | Maidenhead Bypass | J7 Huntercombe | J8/9 Holyport | |||
| A404(M) | Maidenhead Bypass | M4 J8/9 Holyport | J9B The Thicket | M4 | A423(M) | |
| A1(M) | Doncaster Bypass | J34 Blyth | J38 Red House |
What's new
The forever bottleneck, part 2
The second part of the story, where we learn why exactly the M4 gets narrower on the final approach to Europe’s biggest city.
The forever bottleneck, part 1
The M4 into London was one of the UK's earliest and most ambitious motorway projects. It was bold, pioneering... and almost instantly regretted.
Hello, here's my ridiculous side project
An introduction to what I write, and why I write it, and where my strange new road sign simulator fits in to all this.
Have you seen...
Emergency Diversion Routes
Those funny black and yellow symbols are everywhere - and they might just get you back on track one day.
