   the a3, known as the portsmouth road in sections, is a major road connecting london and portsmouth passing close to kingston upon thames, guildford, haslemere and petersfield. for much of its  length, it is classified as a trunk road and therefore managed by the highways agency. almost all of the road has been built to dual carriageway standards. apart from brief sections in london the road travels from that city sw and, after liss, ssw. close to its southerly end, traffic for portsmouth is routed via the a3(m), a27 and m275 &mdash; the a3 becomes a single carriageway through some south hampshire settlements (as exceptionally through battersea, clapham and stockwell towards the northern end).right|thumb|the a3(m) at the portsdown hill road bridge nearing junction 5 with the a27right|thumb|northbound near the wisley interchange with the m25 ==history== the historic portsmouth road once had great strategic significance as the major link between the capital city and what became the settled main port of the royal navy as well as a non-military port. many of the towns and villages that it passed through gained income and prestige as a result â such as kingston upon thames, esher, guildford, godalming, haslemere and petersfield. the modern a3 follows the general route of the portsmouth road, but bypasses many of the towns and villages along the way, le
Motorways_in_England Proposed_roads_in_the_United_Kingdom Roads_in_England Roads_in_London Roads_in_Surrey Streets_in_Lambeth Streets_in_Southwark Streets_in_Wandsworth Transport_in_Hampshire Transport_in_Kingston_upon_Thames Transport_in_Merton