The motorway network is a big place. What are you looking for? You can search all the junctions and other points on the motorway network (service areas, river bridges, and so on) with this form. Select as many or as few options as you like.
Note: Where more than one route appears on the same page, this will show results for all the routes. E.g. entering "A5300" for the Main Route will also permit junctions on the M57, because the two routes share a page.