And the links...
https://bustimes.org/services/31-chelmsford-bus-stn-burnham-clock-tower#map
https://bustimes.org/services/331-chelmsford-bus-stn-burnham-clock-tower#map
https://bustimes.org/services/332-chelmsford-bus-stn-burnham-clock-tower#map
https://bustimes.org/services/336-chelmsford-baddow-road-danbury-bicknacre-woodh#map

I also intend to map route 333 soon...