Editing A3 road (section)

==Proposed developments==

===Ham Barn roundabout, Liss===
Since the 2013 opening of the [[Hindhead Tunnel]], the modern route (or, in the case of the southernmost section, its associated motorway section) is at least dual-carriageway, but at [[Liss (England)|Liss]] is the sole at-grade roundabout. Widely considered the main traffic pinch-point and an accident hotspot (due to its unusual egg-shape and [[camber angle]] which can cause lorries at excess speed to tip over), there have been wide calls for its removal,<ref>[http://selborne.parish.hants.gov.uk/pdf/120308mins.pdf Selborne Civil Parish Council - campaign to replace or alter roundabout] {{webarchive |url=https://web.archive.org/web/20100401025043/http://selborne.parish.hants.gov.uk/pdf/120308mins.pdf |date=1 April 2010}}</ref> the projected increase in traffic with the completion of the tunnel supporting the proposal. In November 2010, the [[Highways Agency]] announced it would discuss three options for the roundabout's future, but in December it announced that no change would be commenced before 2015:<ref>{{cite news |url= http://www.petersfieldpost.co.uk/news/bordon/no_changes_for_a3_roundabout_1_2215626 |title=No changes for A3 roundabout |work=Petersfield Post |date=29 December 2010 |access-date=14 March 2013}}</ref><ref>[http://www.haslemeremessenger.com/article.cfm?id=407&headline=Ham%20Barn%20Options%20Outlined&sectionIs=news&searchyear=2010 'Ham Barn Options Outlined'] 10 Nov 2010, ''Haslemere Messenger''</ref>

*full-time signalling,
*removing the roundabout entirely (and thereby removing the A3/B3006 connection completely),
*keeping the existing system.

===Cathedral exit, Guildford===
The slip road exiting the A3 leading to the [[Royal Surrey County Hospital]] and the [[Surrey Research Park]] regularly creates congestion on the main A3 during peak times, when the traffic queue reaches onto the main carriageway. In May 2011, it was announced that this is to be resolved with new improvements to the traffic system directly adjacent to the A3, with work funded jointly by the [[University of Surrey]] and [[Surrey County Council]].<ref>{{cite web|url=http://www.getsurrey.co.uk/news/s/2092594_end_in_sight_for_guildford_traffic_hotspot |title=End in sight for Guildford traffic hotspot - News |work=Surrey Advertiser |publisher=getsurrey |date=13 May 2011 |author=Caulfield, Chris |access-date=14 March 2013}}</ref>

===Related urban proposals and developments===
Various schemes exist to manage urban traffic and economise land use, and include running park and ride services. The main such scheme along the route is in Guildford. In February 2015, the [[Mayor of London]] Boris Johnson announced plans to build over a short section at [[Tolworth]], after visiting a similar site in [[Boston, Massachusetts]]; the Mayor said "rebuilding some of our complex and ageing road network underneath our city would not only provide additional capacity for traffic, but it would also unlock surface space and reduce the impact of noise and pollution." Similar plans have been proposed for other areas of London but proven cost-prohibitive.<ref>{{cite news|url=http://www.kingstonguardian.co.uk/news/11780277.Going_underground__A3_at_Tolworth_could_become_a_tunnel__says_Boris_Johnson/ |title=Going underground? A3 at Tolworth could become a tunnel, says Boris Johnson|newspaper=Kingston Guardian |first=Jon |last=Sharman |date=9 February 2015 |access-date=15 February 2015}}</ref>