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Road traffic statistics

Roadside traffic counts of Heavy Goods Vehicles are changing from 2028, your feedback will help us improve this.

90211

Details

AADF latest year 2025
Region South East
Local authority West Sussex
Road name A23
Road type Major
Start junction road A23
End junction road B2115 Slough Green Lane
Link length 0.2 miles
Easting & Northing 526787,125913
Latitude & Longitude 51.01862,-0.19375

Location

Streetview shows approximate location only - this panorama may be on a different road to the count point. Current panorama is less than 10 meters from this count point.

Annual Average Daily Flow

Year Count method All motor vehicles Cars & taxis LGVs HGVs Pedal cycles Motorcycles Buses & coaches
2025 Estimated using AADF from previous year on this link 3,923 3,016 765 108 34 34 0
2024 Estimated using AADF from previous year on this link 3,878 2,987 754 105 33 33 0
2023 Estimated using AADF from previous year on this link 3,834 2,965 733 104 32 32 0
2022 Estimated using AADF from previous year on this link 3,769 2,921 709 106 37 33 0
2021 Estimated using AADF from previous year on this link 3,311 2,533 647 102 40 29 0
2020 Manual count 2,858 2,206 539 88 40 25 0
2019 Manual count 3,292 2,681 472 101 8 31 7
2018 Estimated using AADF from previous year on this link 3,467 2,601 626 209 0 19 12

Download data

Data disclaimer

Traffic figures at the regional and national level are robust, and are reported as accredited official statistics. However, DfT’s traffic estimates for individual road links and small areas are less robust, as they are not always based on up-to-date counts made at these locations. Where other more up-to-date sources of traffic data are available (e.g. from local highways authorities), this may provide a more accurate estimate of traffic at these locations.

It is the responsibility of the user to decide which data are most appropriate for their purpose, and if DfT road link level traffic estimates are used, to make a note of the limitations in any published material.

Quality flags in data downloads

DfT’s road link level traffic estimates are calculated using a variety of methods, with some methods likely to produce more accurate estimates than others.

The data tables available to download here contain a column - estimation_method – showing the method used to estimate traffic for each location and year. Figures having an estimation method of “Counted” are likely to be more accurate than those marked as “Estimated”, and the latter should be used with caution.

Metadata

The road traffic statistics metadata PDF document provides guidance on the different datasets available to download for DfT traffic estimates.

Downloads

Site details
Manual count point site 90211 details
Annual average daily flow
Number of vehicles that travel past the count point (in both directions) on an average day of the year.
Annual average daily flow by direction
Number of vehicles that travel past the count point on an average day of the year, by direction of travel.
Raw counts
Vehicle counts recorded at this count point.
Data Description Records Download
Site details Manual count point site 90211 details 1
Annual average daily flow Number of vehicles that travel past the count point (in both directions) on an average day of the year. 8
Annual average daily flow by direction Number of vehicles that travel past the count point on an average day of the year, by direction of travel. 15
Raw counts Vehicle counts recorded at this count point. 48

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