Four thoughts on TfL’s plans to colour code its bus routes

This one’s red. Image: Getty.

So, here’s a thing:

The short version: Transport for London (TfL) is trialling a new colour-coding system for bus routes. Each bus will get its own colour, which will be used on the “spider maps” showing bus routes around a particular area, as well as on signs at stops, and in big numbers on the side of each bus.

At the moment this is only a pilot. Initially, it’s been trialled on seven bus routes around Barkingside, out in the far east; in the summer, it’ll spread to Hayes in the west. But if it works, it could be rolled out further.

So – will it work? Some thoughts.


There aren’t that many colours

London has a lot of bus routes. A lot. Even excluding special services like night buses, school buses and so on, there are over 500 routes.

There are of course an infinite number of colours, so this wouldn’t be a problem – except that there’s a limit to the number the human eye can instantly distinguish. You can get away with a light blue and a dark blue; but throw in any more blues than that, and users have to consciously try to follow a line rather than simply see it at a glance.

One result of this is that no metro map in the world contains more than 15 shades; only a dozen use more than 10. (Lots more analysis on this stuff here.) So the implication that each bus will get an identifying colour like each tube line does is very clearly nonsense.

And buses cross each others’ paths

Not every bus needs a unique colour, of course: you can have multiple buses numbered in violet, providing they don’t go anywhere near each other.

The difficulty is they probably will – and TfL has started with an easy bit of town. There are only seven buses in Barkingside. It’s easy enough, then, to give them all a unique colour:

The Barkingside spider map: click to expand Image: TfL.

But five of those routes go to Ilford, where they cross paths with 12 more. Two of them go to Romford, from where they meet another 19 buses.

And the Romford one: click to expand. Image: TfL.

Even thinking about the maths does my head in – but it seems unlikely to me that every bus in London can be given a colour different from that of every bus it ever shares a stop with. At some bus stops, there’ll be two buses in violet.

The problem is the maps

That’s not necessarily a critical flaw: the big colourful numbers on the side of each bus will still help you when identifying buses from a distance. If a violet 25 and a violet 101 happen to share a stop at some point, well, those numbers look different enough that nobody’s going to confuse them. The colour coding will still be useful.

Except – those numbers aren’t just for the sides of buses, or the stop signs. They’re also meant to match those shown on spider maps, like those above.

I am unconvinced it will be possible to do this in such a way that no map needs to user the same colour for multiple different routes. In fact, I suspect it’ll happen rather a lot.

And I’m not sure a world in which three buses are shown on a single map in the same colour is one in which buses are more accessible than the world we’re living in now.

What about service flexibility?

There’s another issue. The whole point of rotating bus blinds is that the same bus can be used on several different routes. Historically, you’d turn a handle, and both the destination and the number shown on the front of the bus would change.

Old London bus blinds in the London Transport Museum. Image: Leif Jørgensen/Wikimedia.

This meant a degree of flexibility: if a bus broke down, another could be swapped over from a different route to plug the gap. Even today, when London’s bus services are provided by a dozen different companies, each of them generally runs enough routes to retain these advantages.

One quick way to remove this flexibility, though, is to paint the route number on the side of the bus in big colourful numbers, so that a 150 is a 150 is a 150.

I don’t want to be down on this idea. I think it sounds lovely: you’ll be able to spot your bus from further away, and giving bus routes colours should give them a stronger identity, something for people to latch onto. All this should make the bus network more usable to those who find it a bit intimidating.

But – I just can’t see how it’s going to work in practice. I’m sure it’ll work in Barkingside and Hayes. But how can it work in a network of over 500 buses?

I fear this may be one of those ideas where the theory is better than the reality.

You can read more on public transport map colour schemes here, if you so wish.

Jonn Elledge is the editor of CityMetric. He is on Twitter as @jonnelledge and also has a Facebook page now for some reason. 

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A voice for the city: how should mayors respond to terror attacks?

Andy Burnham speaking in Manchester yesterday. Image: Getty.

When Andy Burnham, a former British government minister, won the election to be Greater Manchester’s Metro Mayor recently he was probably focused on plans for the region’s transport, policing and housing – and, of course, all the behind the scenes political work that goes on when a new role is created. The Conversation

And yet just a few weeks after taking on the role, terrorism has proved to be his first major challenge. Following the horrific bomb attack following a concert at one of Manchester’s most popular venues, he quickly has had to rise to the challenge.

It is a sad fact of life that as a senior politician, you will soon have to face – and deal with – a shocking incident of this kind.

These incidents arrive regardless of your long term plans and whatever you are doing. Gordon Brown’s early tenure as UK prime minister, for example, saw the Glasgow terror incident – which involved an attempted car bombing of the city’s airport in June 2007. Just four days into his premiership, Brown was dealing with the worst terrorist incident in Britain since the attacks on London in July 2005. Andy Burnham now finds himself in a similar situation.


Giving Manchester a voice

For Burnham, as the mayor and messenger of Manchester, an attack of this scale needs a response at several levels.

There is the immediately practical – dealing with casualties. There is the short term logistical – dealing with things like transport and closures. And there is the investigation and (hopefully) prevention of any follow ups.

But he will also need a “voice”. People look to particular figures to give a voice to their outrage, to talk about the need for calm, to provide reassurance, and to offer unity and express the sadness overwhelming many.

Part of the thinking behind the UK government’s enthusiasm for elected mayors was a perceived need to provide strong, local leaders. And a strong, local leader’s voice is exactly what is needed in Manchester now.

There is a certain choreography to the response to these events. It tends to go: a brief initial reaction, a visit to the scene, then a longer statement or speech. This is then usually followed by a press conference and interviews, along with visits to those affected. I say this not to be callous, but to highlight the huge demand the news media places on leading political figures when tragedy strikes.

‘We are strong’

As expected, Burnham made a speech on the morning after the attack. It is probably better described as a statement, in that it was short and to the point. But despite its brevity, in nine paragraphs, he summed up just about every possible line of thought.

The speech covered evil, the shared grieving and the need for the city to carry on. He also praised the work of the emergency services, and highlighted the need for unity and the very human reaction of the local people who provided help to those affected.

Andy Burnham on Sky News. Image: screenshot.

Burnham now has the task of bringing people together while there is still doubt about many aspects of what happened. A vigil in the centre of Manchester was rapidly planned for Tuesday evening, and there will be many other potential initiatives to follow.

Incidents like this tend to leave a large and long-lasting footprint. The effects of the bomb will last for years, whether in concrete reality or in people’s awareness and memories. And Burnham must now lead the effort to ensure Manchester emerges from this shocking incident with cohesion and strength.

Paula Keaveney is senior lecturer in public relations & politics at Edge Hill University.

This article was originally published on The Conversation. Read the original article.