Fig. 1
From: Decision support for risk prioritisation of environmental health hazards in a UK city
Example hazard and intervention map. Example city hazard and intervention map. Data were provided by Sustrans, GIS corporate datasets at PHE and the radon research group at PHE. © Crown copyright and database rights 2013 Ordnance Survey 100016969. Data that were used in the quantitative analysis include the A road junctions (thick bold lines), the local cycle routes, the national cycle network and the national cycle route networks (triangles), and the proportion of homes that exceed the action level for radon. We restricted all data included in the model calculations to the wards of the city (light gray lines). In the legend, boxes represent the percentage of homes predicted to be above the radon action level for the ranges 1–3 %, 3–5 %, 5–10 %, 10–30 % and >30 %