The map above is from roadworks.org, it is the most comprehensive source of up-to-date information about roadworks, road closures and diversions, traffic incidents and other disruptions affecting the UK road network.

Other Maps

Cambourne Discovery Map (Wildlife Trust PDF)
Nature reserve map (http://www.wildlifebcn.org)
Landscape Areas 2010
Footpaths, bridleways and cycleways around Cambourne