The 24-hour routes could be better utilised to make more links.
Money can be saved by removing parallels (and reducing capacity on quiet sections of the night network, like Park Lane)
To provide cross-central London links, quite valuable at night and significantly reduces wait times in various interchanges as well as reduction in stands used in the centre of the city.
I have two daring suggestions.
Night time between 23:30 and 05:00:
- Speed limits on select roads increase from 20mph to 25mph (personally would go for 30mph)
- Change in all traffic signal timings, some quiet junctions being turned off or permanently blinking yellow during the hours listed above. Other junctions with reduced wait times, either a third or a half of daytime signal timing. Significantly reduces night travel times by over 15%.
And broadly, modifications to the network
The only remaining night routes with short workings are N8 and N207. Time to address them.
N508 Ealing Broadway - Stratford (replaces N8 and N207 shorts)
N188 Willesden - North Greenwich - Canning Town (replaces N98 shorts)
Entirely new routes bringing many links
N154 Wimbledon via 164 to Morden, via 154 to West Croydon, via 157 to Crystal Palace.