Paragraph 122
Great Portland Street—
(a)
(west arm) between its junction with Marylebone Road (A501) and its junction with Park Crescent Mews East and a point opposite;
(b)
(east arm) between its junction with Marylebone Road (A501) and Bolsover Street and a point 2.5m south of the common boundary between 234 and 240 Great Portland Street and a point opposite.