May to September is prime tourist season, so I'd expect the numbers to be high
Right now the tram doesn't go anywhere useful for tourists
I know we all want to criticise the tram, but we can't attribute the high summer figures to the influx of tourists *and* complain that it doesn't go anywhere useful for tourists.
Which is it?
Tourists will only use it as a fun novelty factor and not to actually get around (with the exception of those going to the Airport) because it doesn't go anywhere useful such as the Royal Yacht, or down towards the palace and science centre.
Most of Edinburgh's tourist attractions are slap bang in the city centre (the tram would be running to the Royal Yacht if the Leith line hadn't been cut back - it was always intended to head down to the waterfront).
Holyrood isn't going to be a busy terminus for a frequent tram (based on the loadings on the half hourly single decker bus from there to the Princes Street area).
it didn't seem like there many large areas of housing, and the stops generally seemed out of the way of any housing, either across a main road or something else.
I imagine it would be a huge success if it actually went somewhere useful but alas, it doesn't. At least not for me.
Given that it was scaled back to a simple line from the city centre to the city outskirts, I don't know how it could have been much more useful (without just copying an existing bus route - in which case we'd all be complaining about spending all that money on a route that just duplicates a Lothian Buses service).
You've got St Andrew Square (for the coach station), Princes Street, Haymarket, Murrayfield, Edinburgh Park and the shops at Hermiston Gait, the Gyle (shopping centre and office parks), the RBS HQ, the P&R at Ingilston and the Airport (plus an interchange with the railway to Fife, if the Edinburgh Gateway opens)...
...on a route that is mainly a segregated alignment (i.e. not caught up with buses/traffic on busy arterial routes).
I'm not defending the construction (construction problems have blighted a few railway infrastructure projects over the years too...), I'm not defending the fact that it was cut back to just one route, but *if* you were to only have a single route from the city centre to the outskirts without branches then the current route ticks about as many boxes as it could.
The Sheffield tram opened with it's share of problems (badly designed, built to serve high rise flats in different parts of town just as the council started demolishing them, thus removing the high density housing from the route, a couple of pointless branches), but we got there. The Edinburgh tram has had a terrible birth, but I think that it serves enough places (jobs, leisure...) to secure its future. Hopefully one day it'll run to Leith and other places, of course.