Naming a rail line: the Expo Line took three identities in one decade

“Grand to the sand” is a good line. It describes the route in four words, it rhymes, and it tells a Los Angeles resident something true: that a train from Grand Avenue downtown now ends at the beach. When Metro invited the public to improve on the Expo Line’s slogan, the underlying problem was not that the existing one was weak. It was that the line kept changing shape.

What was built

The Expo Line arrived in two stages.

Phase 1 opened on 28 April 2012, running from 7th Street/Metro Center in downtown Los Angeles to Jefferson/La Cienega.

Phase 2 opened on 20 May 2016: 6.6 miles of new light rail and seven new stations from Culver City to Santa Monica, bringing the whole line to 15.2 miles. This is the extension that made the beach claim true, and it is why the branding question came up in the first half of 2016.

For a city that had spent decades as a byword for car dependency, a rail line reaching Santa Monica was a genuine event. It was also the moment the line’s name stopped describing it.

Three identities in ten years

“Expo” came from Exposition Boulevard, which the alignment follows for much of its length. It is a perfectly reasonable name for a line defined by a street it runs along, and a poor one for a line whose selling point is where it ends.

In late 2019 Metro replaced its colour and place names with letters, and the Expo Line became the E Line. The argument for letters is not aesthetic. Colour names run out, they collide with map legibility once a network has enough branches, and they translate badly in a county where transit information has to work in many languages. A letter is arbitrary, which is exactly its advantage: it carries no claim that can become false.

Then on 16 June 2023 the Regional Connector opened, joining light-rail segments that had previously terminated separately downtown. The E Line now runs from Santa Monica right across downtown to East Los Angeles. A passenger boarding at the beach can stay on the train through the centre of the city, which was not possible in 2016 and was not what the line was built as.

So within a decade the same infrastructure was an Exposition-Boulevard line, then a lettered line to the sea, then a cross-town through service. Any slogan written for one of those is wrong for the next.

Why this is a real design problem

Transit branding looks like a marketing exercise and behaves like an interface specification.

The name is what a rider uses to make a decision at a junction, under time pressure, sometimes in a second language, often while reading a sign at an angle. It has to survive the network being extended, which means it cannot encode a destination. It has to survive being spoken aloud by a driver over a poor speaker. And it has to survive translation into a map colour, an app label and a printed timetable without any of them contradicting the others.

Place-based names fail the first test as soon as a line is extended. Colour names fail the second and third once there are more lines than easily distinguished colours. Letters fail none of them, at the cost of telling a first-time rider nothing at all — which is why the slogan question exists: the letter does the wayfinding, and something else has to do the explaining.

What a slogan is actually for

Not navigation. By the time someone needs to know which train to board, the answer has to come from a map or a sign, not a marketing phrase.

What a slogan can do is change the default assumption about whether a journey is possible. In 2016 the useful work was not helping people find the platform. It was telling several million people who assumed you cannot get to Santa Monica without a car that you now can, in one seat, from downtown. “Grand to the sand” does that in four words, and the fact that it stopped being the whole route seven years later does not make it a bad slogan. It makes it a dated one, which is the normal fate of any accurate description of a growing network.