page_title: M4 bus lane
hierarchical_section_title: M4 bus lane
caption_attribution_description: English: The location of the M4 motorway buslane
context_page_description: The M4 bus lane was a controversial 3.5-mile bus lane on the eastbound carriageway of the M4 motorway between Heathrow Airport and central London. It operated between junction 3 to the start of the elevated 2-lane section near Brentford. The lane, which had no intermediate junctions, was reserved for buses, coaches, motorbikes, emergency vehicles and licensed taxis but not mini-cabs.
  It was positioned in Lane 3 on the motorway, causing bus drivers to switch lanes between 1 mile and 500 yards before the lane started.
  The lane opened as a pilot in June 1999 and was made permanent in 2001. It was suspended during December 2010 using an 18-month Experimental Traffic Order after which it was reinstated temporarily for the 2012 London Olympics. It has since been scrapped permanently.
context_section_description: The M4 bus lane was a controversial 3.5-mile (5.6 km) bus lane on the eastbound (London-bound) carriageway of the M4 motorway between Heathrow Airport and central London. It operated between junction 3 (A312) to the start of the elevated 2-lane section near Brentford. The lane, which had no intermediate junctions, was reserved for buses, coaches, motorbikes, emergency vehicles and licensed taxis but not mini-cabs.
  It was positioned in Lane 3 on the motorway, causing bus drivers to switch lanes between 1 mile and 500 yards before the lane started.
  The lane opened as a pilot in June 1999 and was made permanent in 2001. It was suspended during December 2010 using an 18-month Experimental Traffic Order after which it was reinstated temporarily for the 2012 London Olympics. It has since been scrapped permanently.
caption: Map showing location of the bus lane
exif: {}