The Metropolitan Borough of Walsall is split between several Travel to Work Areas (TTWA). The central and northern areas of the borough (including the towns of Walsall, Bloxwich and Brownhills) are within the Walsall and Cannock TTWA, whilst the majority of the area west of the M6 motorway (including the towns of Willenhall and Darlaston) is within the Wolverhampton TTWA. The southeast of the Metropolitan Borough (including Streetly) is within the Birmingham TTWA. The entire borough is within the Birmingham Larger Urban Zone.