I take public transport to work and occasionally into the city.
Its not only more relaxing, sometimes you see some interesting things that you may have not seen when your busy concentrating on the drive. (Rubber-necking at car accidents is also easier.)
At the listed co-ordinates, you should be standing on a square man hole that has 3 digits that were written in wet concrete = ABC
Within arms reach, is a green signalling box:
Please ring = DEFGHI
Quote number = JKLM
J (C/E) A = Bus route number
Walk 50m down to the nearest bus stop and hop onto this bus. You want to catch the bus which is non-express to the destination.
Please check the bus' timetable for departure advice and the route map.
Update 28 March 2020: Some years back the bus company changed the bus route, you will have to either take another bus, or do some homework to get the rest of the clues to this cache. Here are some maps you may find useful.
You are looking for two self storage facilities.
You will not need to leave the bus to get the required information to calculate GZ, but will need to keep your eyes peeled.
The first is on a corner, phone number = NOPQ RSTU
The second is on the opposite side of the road, phone number = VWXY Zabc
You now have some time before reaching the destination to calculate the location of the cache:
South: 37 [OP-(DE+F)] . [YXWV-DBOL]
East: 144 [MI] . [FGHI-PN(T+U)]
(Edited to add: No multiplication skills are needed to work out the co-ordinates.
I will also take the time now to re-emphasise that you are following a certain bus route, if you've taken your own means of transport and have not arrived at the bus' destination, you are at the wrong place!)
Don't worry about the bus driver, there should be adequate shelter to not be seen by him/her.
There is a security camera overlooking the stop, but this too should also be no problem.
Beware for those that like night caching, at the time of placement, there is railway maintenance works going on at nearby tracks.
Please replace cache as found.
Many thanks must go to the bf for his help (and patience) in creating this cache.