To start, I will continue using my example of the mess north of Cardigan with the X50, 552 and 554 local services and the TrawsCymru T5 service. In this area, I would suggest the following routes, any of which could have short workings if necessary to appropriate service frequencies:
- Aberystwyth – Aberaeron – Cardigan – Fishguard (direct services only). These would be the only TrawsCymru services, personally I’d call it the TC5 rather than just T5. If you don’t want the college-days-only short working between Aberaeron and Cardigan branded as TrawsCymru that could be known as the X50 all by itself
- 50 Aberystwyth – Aberaeron – New Quay – Cardigan
- 550 Aberystwyth – Aberaeron – New Quay – Aberporth – Cardigan
- 552 New Quay – Llangrannog – Tresaith – Aberporth – Mwnt – Gwbert – Cardigan (Cardi Bach route)
- 554 Beulah – Tresaith – Aberporth – Cardigan
With the above, for example, passengers from Aberporth to Penparc would have a clear choice of 550 or 554, they would know the 552 goes via Gwbert and is not for them. People bound for Gwbert from Cardigan would know they need a 552, and passengers for Aberporth would be able to see ’50’, ‘X50’ or ‘TC5’/’T5’ and know they needed to wait for a 550, 552 or 554. There are probably many more examples of the improved clarity this would bring. Admittedly Llangrannog’s once-weekly fast(ish) service to Cardigan would have to become a normal slow service via all the beaches, but nobody with a choice of mode is going to rely on such an infrequent service. Also, the one journey between Beulah and Cardigan via Gwbert would be re-routed via Penparc, meaning Beulah-Gwbert journeys would always require a change of bus, but that’s not likely to be a popular flow and an extra 552 (probably a short working between Cardigan and Aberporth/Tresaith) should be put in to maintain service levels at Gwbert.
The above is just to show it should be possible to solve the problem, but how to avoid the creation of blanket service numbers in the first place? I don’t think a hard-and-fast rule is possible, since an application of common sense is required. For example, there are two different routes that buses may take through Penparc, and some buses detour via Aberaeron school. I made the decision that the routes are not significantly different, with all points being within walking distance of the main route. Essentially, there needs to be a basic guideline but with a single mind to make a personal judgment. The person best placed to do this would probably be the Traffic Commissioner for each area. Bus services must be registered with the Traffic Commissioner, so they could be responsible for judging whether routes are significantly different, and preventing registration of services which would lead to a settlement being served by more than one ‘significantly different’ route with the same number. If they receive a registration which conflicts with this policy, they would instruct the operator(s) concerned to use a different number (or numbers).