Traffic Calming Measures - Speed Hump
Design, Implementation, Potential Impacts and Cost of Speed Humps.
Traffic Calming, State of the Practice, ITE, U.S. DOT, FHWA
This report contains a synthesis of traffic calming experiences to date in the United States and Canada. It includes information on traffic calming in residential areas and in areas where high speed rural highways transition into rural communities.
Take Back Your Streets
How to Protect Communities from Asphalt and Traffic Conservation Law Foundation (Revised: January 1998).
Visualising Density: Lower Density Catalog Images (PDF)
Lincoln Institute of Land Policy - Working paper by Julie Campoli and Alex S. MacLean. Has images of various densities from .5 units/acre to 10.5 units/acre.