Created 5 years ago, updated 5 years ago

This data set covers 877 structures within the Greater London boundary / M25 comprising of low bridges, tunnels and road barriers in a .csv file which will be updated annually.

It is available in our Roads data bucket under the folder /Bridges - restrictions.

The data contains the following variables:

Variable Description / value
Height restriction(m) • Up to 3.0
• Between 3.1 and 3.5
• Between 3.6 and 4.0
• Between 4.1 and 4.5
• Between 4.6 and 5.1
Height restriction (imperial) • Up to 9'10"
• Between 9'10" and 11'6"
• Between 11'9" and 13'0"
• Between 13'3" and 14'9"
• Between 15'0" and 16'6"
Easting X-coordinate
Northing y-coordinate
Grid Reference Grid reference value
Lat Latitude value
Lng Longitude value
Borough Borough name
Road name Road name
Road number Road Number
TLRN [Red route]? • Yes = restriction is located on TLRN
• No = sign is NOT located on TLRN
(TLRN = Transport for London Road Network Area = Red Route, road network controlled by TfL)
Comments Additional information