It's all in the infrastructure. Proper bus lanes and priority at lights similar to the A45/Small Heath ASDA junction coming out of City.
I've driven the "Metrobus" in Bristol, which is a cross city service (North to South). And the majority of it is bus lanes, and it works. The other thing is Dual Door vehicles. They don't seem to be favoured out of London, but for a project like this they are far superior than conventional single door vehicles. The third thing they've done in Bristol is made the Metrobus cashless. Tap&Go and QR code multi use tickets. Loading and unloading is very quick. By having dual door vehicles, you find that passengers don't hang around the bottom of the stairs blocking passengers boarding, because the exit door is further back.
I've driven the "Metrobus" in Bristol, which is a cross city service (North to South). And the majority of it is bus lanes, and it works. The other thing is Dual Door vehicles. They don't seem to be favoured out of London, but for a project like this they are far superior than conventional single door vehicles. The third thing they've done in Bristol is made the Metrobus cashless. Tap&Go and QR code multi use tickets. Loading and unloading is very quick. By having dual door vehicles, you find that passengers don't hang around the bottom of the stairs blocking passengers boarding, because the exit door is further back.