The Building Research Establishment has published its 2006 catalogue, and the majority of the publications are available in full-text via the RIBA Construction Information Service (go to the Digital Library Databases A-Z list).
A couple of transport titles to note are:
Designing for cyclists: a guide to good practice, EP 68
Designing for pedestrians: a guide to good practice, EP67
Recent Good Building Guides include:
Installing thermal insulation: good site practice, GG68
Achieving airtightness, GG67
and a related publication, Conventions for U-value calculations (BR443), is also available