Nearly-straight road running NE from the A40 Marylebone Flyover and the [Harrow Road]?. At the western end [Lisson Grove]? terminates on the north side. Further to the east [Gloucester Place]? crosses it, followed shortly by Baker Street which does the same thing. It then passes to the south of Regent's Park. Opposite the park's southeast corner is [Park Crescent]?, and just to the east of that [Albany Street]? runs to the north and Great Portland Street to the south. At this point the road becomes [Euston Road]?.