It's not shown on the latest cycling city maps, but as it as the same bicycle-with-a-red-ring logos as spotted on the Portsmouth sea front, it is clear that this is part of the initiative. The lifts at Trenchard Street car park provide a key service to getting new and unfit cyclists around the city -they provide a route from the centre to Park Row that avoids any hill work
Drop down to Trenchard street, go over to the lifts. Floor 8 is the exit level. If you are unsure, aim high, so you have a bit of downhill to do, rather than uphill.