Dewan Karim M.A.Sc., MITE, P.Eng., PTOE

Senior Associate, Transportation Safety

Our Associates perform on-site investigations to determine origin and cause of complex losses. Their process: examine and collect evidence, take on-site photos, interview witnesses, conduct testing in our lab and analyze data to produce technical reports that are clear and concise.


Expert Summary

Mr. Dewan Karim is a Senior Associate with the Transportation Engineering and Safety Group at 30 Forensic Engineering. He graduated from the University of Tokyo with a Master of Engineering in Infrastructure Planning and a Master of Applied Science in Transportation Safety from Ryerson University. Dewan has focused on transportation engineering, planning and traffic safety issues since 2000 and received his Professional Engineer designation in 2008. He has been a Forensic Engineer in the Collision Reconstruction Group at 30 Forensic Engineering since September 2018. Dewan has investigated strategic safety and location-specific collisions from traffic engineering and safety regulations for all street users including motor vehicles, cyclists, pedestrians, off-road and commercial vehicles, and motorcycles. He has also researched safety aspects of transportation planning and street design issues including Vision Zero plans for several municipalities in Canada.


Transportation Engineering, Operations and Safety:

  • Passenger and commercial vehicles, motorcycles and recreational vehicles, cyclists, and pedestrians
  • Specialized in traffic engineering and safety regulations in Ontario
  • Assessment of traffic safety using local standards, manual and guidelines
  • Area safety studies for intersections, street segments and other roadway locations
  • Strategic safety and planning policies that influence overall traffic safety outcome
  • Safety assessment of new transportation modes such as carshare, rideshare, bikeshare, scooters
  • Intersection collision including turning movement, traffic signal, pavement marking assessment
  • Smart data to identify safety trends prior to actual incident
  • Transit user safety and rail infrastructure assessment to improve user or operational safety
  • Land-use policies that influences safety outcome
  • Safety perspective for senior citizens, children, school travel and disable persons
  • Winter maintenance, minimum maintenance standards, highway traffic act, OTM manuals, master plans
  • Roundabout safety and traffic calming measures

Academic Background

Master of Applied Science (Civil Engineering), Ryerson University, Toronto, Ontario, 2006

Master of Engineering (Infrastructure Planning), University of Tokyo, Japan, 2000

Bachelor of Applied Science (Civil Engineering), Bangladesh University of Engineering and Technology, Dhaka, Bangladesh, 1998

Professional Experience

30 Forensic Engineering
Senior Associate — Transportation Safety
September 2018 — Present, Toronto, ON

  • Lead investigator for transportation facility design, operations and maintenance files for public, legal and insurance sector clients.
  • Lead transportation safety training.
  • Transportation safety and traffic engineering peer review services.

City of Toronto, Transportation Planning
Senior Transportation Planner and Acting Manager
2013 – 2018, Toronto, ON

  • Developed evidence-based safety Vision Zero approach for community planning.
  • Led several active transportation guideline projects to improve walking and cycling in suburban environments.

WSP (Genivar Canada)
Project Manager and Transportation Planning Engineer
2012 – 2013, Markham, ON

  • Prepared technical reports for corridor and intersection projects.
  • Investigated safety aspects of residential and commercial site developments.

City of Oshawa
Senior Transportation Planning Engineer
2009 – 2012, Oshawa, ON

  • Completed long-term draft “Active Transportation Master Plan”, comprehensive network screening for collision assessments and safety performance assessment for all major streets.
  • Managed a comprehensive transportation infrastructure review for mast planned areas. Liaised developers/external agencies to achieve safety policies including cycling network, pedestrian promenade, transit facilities, community traffic safety plan and area-wide traffic roundabout safety.

IBI Group
Transportation Planning Engineer
2006-2009, Toronto, ON

  • Researched on safety and network performance of Fused-Grid street network.
  • Planned and designed several roundabouts in Waterloo and Barrie.

University of Tokyo, Japan Pavement Corporation and Ryerson University
Research Assistant and Transportation Engineer
1998-2006, Tokyo, Japan and Windsor, ON

  • Conducted and organized in-depth study on holistic view of human interaction with roadway planning and design elements to improve collision safety countermeasures at urban intersections.
  • Implemented ITS driver safety supporting system that assists drivers dealing with dangerous situations.
  • Developed new intersection safety function model and countermeasures assessment for 6000 intersections in Tokyo and 400 intersections in Toronto.

Professional Licenses and Certifications

  • Professional Engineers of Ontario (PEO), Member
  • Professional Traffic Operation Engineer (PTOE), Certified by ITE and TPCB, 2008

Professional Societies and Associations

  • Professional Engineers of Ontario (PEO), Member
  • Institute of Transportation Engineers, ITE, Member
  • Canadian Transport Research Forum, CTRF, Member
  • International Municipal Signal Association, IMSA, Member
  • Canadian Society of Civil Engineers, CSCE, Member
  • American Society of Civil Engineering, ASCE, Member


  • "The Future Multimodal Mobility for a Liveable City", Keynote Speaker, Smart City Expo, May 8, 2018.
  • “Rethinking Mobility Planning and Redesigning Cities for Innovative Mobility System”, Keynote Speaker, 1st International Urban Mobility Dialouge, Berlin, November 1-4, 2017.
  • “Multimodal Planning Beyond Toronto's Urban Core”, Webinar with CEO, StreetLight, Nov 2017.
  • “Redesigning Cities & Public Space for Innovative Mobility System”, World Design Summit, Oct 18, 2017.
  • Creating Innovative Mobility Ecosystem for Urban Planning Areas, AV Workshop, USA, April 2017.
  • Innovative Mobility Master Plan, Disrupting Mobility Summit, MIT Media Lab, Cambridge, MA, November, 2015.
  • “Narrower Lanes, Safer Streets”, Annual Conference of CITE, Regina, SK, July 2015.
  • “Promoting Active Transport Through Land-Use Planning”, Urban Trans. Summit, Toronto, ON, March, 2012.
  • “Streets for People: An Evidence-Based Bicycle Planning”, Complete Street Forum, Toronto, ON April 2011.
  • “Toward a clean train policy: diesel versus electric” OCEPP Policy Journal, July 2010.


  • Qualified as an Expert Witness in Land-use Tribunal, Ontario Municipal Board.
  • Testified as an Expert Witness in Superior Court of Justice, Ontario for Winter Maintenance and Temporary Conditions Trial: Hilda Fernandez vs. City of Toronto, TTC & Bondfield.