Home 02 London Impact Index

London Impact Index

Reporting Period: June 2025


Simple table showing impact index across all Local Highway Authorities in London. This allows for a more targeted view of the impact index for london only.

Highway Authority Impact Category Impact Index Total Weighted Impact Score Avg Impact per USRN
CITY OF WESTMINSTER Severe 100.0 19.90k 16.53
LONDON BOROUGH OF CROYDON Severe 97.0 15.34k 11.64
LONDON BOROUGH OF EALING High 93.9 12.78k 11.87
LONDON BOROUGH OF BARNET High 90.9 12.62k 9.91
LONDON BOROUGH OF ENFIELD High 87.9 12.32k 10.01
LONDON BOROUGH OF SOUTHWARK High 84.8 11.20k 13.86
LONDON BOROUGH OF BROMLEY High 81.8 11.00k 8.86
LONDON BOROUGH OF CAMDEN High 78.8 10.54k 15.03
TRANSPORT FOR LONDON (TFL) High 75.8 10.03k 20.98
LONDON BOROUGH OF HAMMERSMITH & FULHAM Moderate 72.7 9.77k 17.37
LONDON BOROUGH OF REDBRIDGE Moderate 69.7 9.73k 12.68
ROYAL BOROUGH OF GREENWICH Moderate 66.7 8.18k 8.31
LONDON BOROUGH OF BRENT Moderate 63.6 8.09k 9.85
LONDON BOROUGH OF LEWISHAM Moderate 60.6 7.90k 12.62
LONDON BOROUGH OF NEWHAM Moderate 57.6 7.87k 9.35
LONDON BOROUGH OF BEXLEY Moderate 54.5 6.10k 7.72
CITY OF LONDON CORPORATION Moderate 51.5 6.02k 16.88
LONDON BOROUGH OF HILLINGDON Low 48.5 5.83k 7.20
LONDON BOROUGH OF HAVERING Low 45.5 5.72k 5.97
LONDON BOROUGH OF HOUNSLOW Low 42.4 5.57k 8.04
LONDON BOROUGH OF WANDSWORTH Low 39.4 5.50k 9.21
LONDON BOROUGH OF HARROW Low 36.4 5.41k 7.64
LONDON BOROUGH OF HARINGEY Low 33.3 5.06k 8.11
LONDON BOROUGH OF MERTON Low 30.3 4.74k 8.56
LONDON BOROUGH OF RICHMOND UPON THAMES Low 27.3 4.55k 7.05
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Histogram of the total weighted impact score for each Local Highway Authority in London.

This shows the distribution before index normalisation.

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Weighted Impact Score Map:

Simple map showing weighted impact scores for each road across Local Highway Authorities in London

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