CONTENTS Geotechnical Developments - Jim Williams The Heavy Vehicle Crash Study - Fred Schneering Bridge Management Systems - Paul Keogh New Technology for Effecive Pothole Patching - Peter Morris Contract Maintenance Pilot Study - Malcolm Frost Instrumentation for Road and Traffic Data Collection - Fred Clerk Sprayed Sealing Guide - Phil Walter Noise and Skid Resistance of Concrete - Geoff Ayton Delineation Linemarking - John Bliss