Heathrow Airport: Road Traffic

Department for Transport written question – answered on 11th January 2019.

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Photo of Andrew Slaughter Andrew Slaughter Labour, Hammersmith

To ask the Secretary of State for Transport, what assessment he has made of the number of vehicles using (a) the M4, (b) the M25, (c) the A4 and (d) the local road network to access Heathrow airport in each of the last two years.

Photo of Jesse Norman Jesse Norman Minister of State (Department for Transport)

As part of the Department’s National Statistics series on Road Traffic, the Department produces annual estimates of the average daily flow of vehicles on the major roads near Heathrow airport. The Department does not know the destination of these vehicles.

The table below provides a breakdown of vehicle flow estimates on sections of (a) the M4, (b) the M25 and (c) the A4 close to Heathrow airport for 2016 and 2017 – the latest years available.

Average Daily Flow Estimates of motor vehicles on the M4, M25, and A4 near Heathrow Terminals – 2016 and 2017

For terminals 2 & 3

Average Daily Flow

Road link by direction

Traffic count-point ID

2016

2017

M4 westbound - before junction 4

CP 6013

73,421

70,077

M4 eastbound - before junction 4

CP 16012

72,498

74,388

M25 southbound - before junction 15

CP 7902

97,584

101,256

M25 northbound - before junction 15

CP 27923

105,827

103,287

A4 eastbound - before T2&3

CP 56114

10,451

10,406

A4 westbound - before T2&3

CP 16112

6,807

7,977

For terminals 4 & 5

Average Daily Flow

Road link by direction

Traffic count-point ID

2016

2017

M4 westbound - before junction 4b

CP 16012

74,344

79,547

M4 eastbound - before junction 4b

CP 48582

75,076

72,544

M25 northbound - before junction 14

CP 47876

104,525

97,377

M25 southbound - before junction 15

CP 27923

108,635

107,772

Vehicle counts are collected at a sample of locations on (d) the local road network. These can be accessed via the Department’s interactive map here:

https://roadtraffic.dft.gov.uk/manualcountpoints

Contextual information can be found on the data.gov.uk website here:

https://www.gov.uk/government/collections/road-traffic-statistics

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