HGC works with planners, developers and transportation authorities to address regulatory requirements by pursuing research and development, conducting road, rail and air traffic impact studies, developing traffic noise predictive models and designing mitigation solutions that facilitate the approval process and help maintain good community relations. We have conducted hundreds of environmental noise and vibration studies on road, rail, tunnel and bridge traffic adjacent to residential neighbourhoods, hi-rise condominiums and commercial developments, including determination of specific abatement measures required to ensure compatibility.

We have a comprehensive familiarity with the noise and vibration guidelines of Canadian National (CN) and Canadian Pacific (CP) railways, Ministry of the Environment, Conservation and Parks (MECP), Ontario Ministry of Transportation (MTO), and the US Federal Highways Administration, being daily involved with their practical application. And closer to home we have good professional relationships with CN, CP, GEXR, SOR, Trillium Rail, Go Transit and Rail Link personnel developed over time as we have worked to resolve transportation related noise and vibration issues.

Our noise and vibration mitigation solutions include the design of highway and railway noise barriers such as berms and fences. We have also isolated buildings, rooms and sensitive equipment from the effects of rail vibrations in Canada, the United States and in the UK. Furthermore, we have undertaken environmental assessments of airport traffic, conducted road surface tests to investigate possible highway noise reduction strategies, and we are currently researching and authoring a report on railway vibration reduction strategies for the Railway Association of Canada.

• Road Traffic Noise – Highways, Regional Roads, Intersections, Road Widenings, Haul Routes
• Railway Noise & Vibration – Trains, Subways, Light Rail (LRTs) and Streetcars/Trams
• Aircraft/Helicopter Noise – Airports, Hospital Landing Pads
• Bridge/Tunnel Noise & Vibration: Road & Railway
• Race Track Noise – Race Cars, Horses, Motor Bikes, Go Karts
• Bus Terminals/Train Stations
• Maintenance Yards: Bus Depots/Garages, Rail Yards