News earlier this month that Zaha Hadid, Norman Foster and Richard Rogers are competing to design the world's largest airport at Daxing, southwest of Beijing, makes this week's transport-related architectural stories seem little more than the stuff of "news in briefs" tucked into the corners of news pages.  Even so, the 90,000 passengers who use Euston station every day may well be pleased to learn that the London terminus is about to be given a makeover by Aedas Architects. The polished black granite 1960s station, opened by the Queen in 1968, replaced the original terminus, which dated from 1837. With its handsome train shed by Charles Fox, a magnificent entrance – the Euston Arch – designed by Philip Hardwick to mimic an ancient Greek propylaeum, and a sumptuous Great Hall (England's noblest waiting room) drawn up by Hardwick's son, Philip Charles Hardwick, the original Euston station was admired worldwide. Sadly, all this was churlishly demolished in 1961-2.  The current 1960s building has never been popular, and not just because of the loss of the Victorian station: nearly half a century on, there is still nowhere to sit in this airport-style "terminal" while waiting for trains that are strangely hidden out of sight.  The Aedas team will clear the station's clutter, add a mezzanine with new cafes and somewhere to sit overlooking the concourse, and generally make the building feel crisp, clear and clean. The project is meant to be temporary, although this turns on whether or not HS2, the new high-speed line from Birmingham to London, goes ahead. If it does, Euston may yet be rebuilt completely. But don't hold your breath: big talk in 2008 of an ambitious new station masterplanned by Allies and Morrison, designed by Foreign Office Architects, developed by British Land and with the Euston Arch brought back to life, came to nothing. Aedas's revamp may end up lasting a very long time.  If the renovation of Euston is, in part, being encouraged by the London 2012 Olympics, the redevelopment of Glasgow Queen Street station is being prodded on by the 2014 Commonwealth Games, although work on this Victorian station is not expected to be complete until 2015. A 1970s office block fronting the station will be demolished and the terminus will refaced with a glazed atrium and a direct link to the Buchanan Galleries shopping centre. If it was fashionable 50 years ago to turn railway stations into faux airport terminals, they are now on their way to becoming shopping malls, with eye-wateringly expensive trains attached.  Alejandro Zaera-Paolo of AZPA, a former partner of Foreign Office Architects (disbanded since the 2008 Euston plan), is in the running to design one or perhaps two stations for the new Galicia extension of Spain's high-speed AVE, at Ourense and Santiago de Compostela. Zaera-Polo's rivals at Ourense are Norman Foster, Richard Rogers and Eduardo Souto de Moura, while the shortlist for Santiago de Compostela includes David Chipperfield.  Biarritz station is quite some walk from the city's seafront on the Bay of Biscay. Here, the world of commuters gives way to sailing boats and surfboards and to the curious Cité de l'Océan et du Surf, opened this summer. Designed by Steven Holl with Solange Fabião, this museum of the sea is a poetic place where the architecture blurs into the waves and where you'll find a surfers' kiosk and a semi-enclosed space for performances and festivals. The building has just won a 2011 Emirates Glass LEAF award, an international prize for the world's best new buildings.  The Leaf awards' special commendation went to the gloriously colourful and playful University of Naples metro station (below), designed by Karim Rashid. These interiors will certainly take anyone's mind off the woes of commuting. Every staircase is an artwork, with each step offering a fraction that builds up to a whole, flight-long picture. Pop imagery abounds; it's like the psychedelic art shows of the 60s, at the time the new Euston opened. And very radical for a Metro station, even five decades on.  We've had trains and surfing, and now here's something for cyclists. The 2012 Olympic velodrome by Hopkins Architects is the favourite to win the RIBA Stirling prize. The winner of what the judges believe to be the best new building designed or built in Britain by a British-based practice is announced at a slap-up dinner at the Magna Science Adventure Centre, Rotherham, on Saturday night. The local train station has just been rebuilt by Aedas. From Euston, change at King's Cross and Doncaster.
Jonathan Glancey: All aboard! Our transport special schedules an Olympic facelift for Euston station and a psychedelic stop on the Naples metro