A multi-vehicle crash on the Coquihalla sent 29 people to hospital in February 2018. Image: Facebook/Hope Volunteer Search and Rescue

A multi-vehicle crash on the Coquihalla sent 29 people to hospital in February 2018. Image: Facebook/Hope Volunteer Search and Rescue

Speed limit hikes caused more fatalities on B.C. highways: Study

A new study from UBC says the increased rural highway speed limits in British Columbia led to more deaths on our roads.

B.C. highways are more dangerous than ever before, according to a new study from UBC.

Speed limit increases put into place in 2014 by the former B.C. government led to an increase in fatalities, injuries, crashes and insurance claims on some B.C. roads, according to the study. Study authors say speed limits should be rolled back to at least 2014 speed levels.

Advocates of higher speed limits have argued that traffic fatalities are decreasing despite higher speed limits, and that modern vehicles are able to safely travel at higher speeds, however this study’s findings paint a different picture.

Following the increase in rural highway speed limits in British Columbia, researchers say there was a marked deterioration in road safety on the affected roads.

“The number of fatal crashes more than doubled (118 per cent increase) on roads with higher speed limits. Affected roads also had a 43 per cent increase in total auto-insurance claims and a 30 per cent increase in auto-insurance claims for injuries due to crashes,” reads the study led by Vancouver General Hospital emergency room physician Dr. Jeff Brubacher, and co-authors including road safety engineers in Kelowna at the UBC Okanagan campus.

Graphic from the Road Safety Impact of Increased Rural Highway Speed Limits in British Columbia, Canada study

Speed limits on 1,300 kilometres of rural provincial highways were raised in July 2014. A maximum speed of 120 kilometres per hour was instituted.

Researchers state that higher speed means more severe injury in the event of a crash, regardless of the cause.

“Furthermore, higher travel speeds make the task of driving more difficult, because drivers must perceive, interpret, and respond to relevant stimuli at a faster rate,” reads the study. “In complex driving environments, this may overwhelm a driver’s perceptual or cognitive capacity, resulting in failure to recognize or respond to hazards.”

A Nilsson study done in 1982 in Sweden found numbers that support this.

According to the Nilsson model, a five per cent increase in mean traffic speed (e.g., from 100 to 105 km/h), would result in a 22 per cent increase in fatal crashes.

“The speed limit increases generated vigorous public debate, with pro speed advocates claiming, for example, that slower drivers were as dangerous as speeding drivers. There was concern that this “pro-speed rhetoric” would result in increased travel speed and more crashes across the province. Fortunately, there was only limited evidence of worsening road safety at a provincial level. We did find a 4.8 per cent increase in auto-insurance claims for injuries due to crashes at a provincial level, but no significant worsening in other crash indicators,” concludes the report.

“Based on our findings, we recommend that British Columbia roll back the 2014 speed limit increases.”

Further to that, the study’s authors suggest speed limits be set even slower than the 2014 levels in areas with adverse driving conditions.

“Other jurisdictions, especially those with harsh winter climates or with highways that traverse mountainous terrain, should learn from this experience and resist pressure from pro speed advocates to raise speed limits without due consideration of road safety.”

The research was based on BC data from police reports (2000–2015), automobile insurance claims (2000–2016), ambulance call dispatches (2004–2016), gasoline sales (2009–2016) and vehicle speed travel data from permanent count stations (2005–2016).

Related: Coquihalla fully reopen after crashes send 29 to hospital

Related: Semi destroyed in violent crash on Coquihalla

Related: One driver killed, Coquihalla partially reopens northbound

Related: Woman’s body discovered in ditch near Coquihalla Highway

To report a typo, email:
newstips@kelownacapnews.com
.


@carmenweld
carmen.weld@bpdigital.ca

Like us on Facebook and follow us on Twitter.

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

From right: Brad Cameron, BCEHS superintendent of patient care delivery for Greater Victoria, with primary care paramedics Em Funk, Tyrone Trotter, Fiona Galvin and Peter Hill at the Leigh Road station. (Black Press Media file photo)
West Shore paramedics didn’t waver when faced with COVID-19 pandemic

B.C. Emergency Health Services personnel are this year’s Courage and Bravery Award recipients

February is Black History Month. (Photo: Government of Canada)
Camosun College highlighting Black content with research guide during Black History Month

The collection includes a range of works by Black authors and creators

Amy Morrison was surprised to find a note on her windshield for parking on a public street with no restrictions in south Oak Bay where she works. (Amy Morrison Photo)
Oak Bay resident uses notes to claim street parking

‘You must have noticed, we park in front of OUR HOUSE,’ note writer says

Debra Sheets, a University of Victoria nursing professor, is starting Victoria’s first Memory Cafe program for adults with dementia and their caregivers. (Photo: Debra Sheets)
Memory Cafe Victoria hopes to connect local dementia community

Adults with dementia and their caregivers will participate in weekly Zoom socializing and activities

Dr. Bonnie Henry leaves the podium after talking about the next steps in B.C.’s COVID-19 Immunization Plan during a press conference at Legislature in Victoria, B.C., on Friday, January 22, 2021. THE CANADIAN PRESS/Chad Hipolito
COVID: 589 new cases in B.C., and 7 new deaths

No new outbreaks being reported Feb. 26

Staff from the Marine Mammal Rescue Centre, passersby, RCMP and Nanaimo Fire Rescue carried a sick 300-kilogram steller sea lion up the steep bluff at Invermere Beach in north Nanaimo in an attempt to save the animal’s life Thursday. (Photo courtesy Marine Mammal Rescue Centre)
300-kilogram sea lion muscled up from B.C. beach in rescue attempt

Animal dies despite efforts of Nanaimo marine mammal rescue team, emergency personnel and bystanders

Gina Adams as she works on her latest piece titled ‘Undying Love’. (Submitted photo)
‘Toothless’ the kitty inspires B.C. wood carver to break out the chainsaw

Inspired by plight of a toothless cat, Gina Adams offers proceeds from her artwork to help animals

B.C. Finance Minister Selina Robinson presents bill to delay B.C.’s budget as late as April 30, and allow further spending before that, B.C. legislature, Dec. 8, 2020. (Hansard TV)
How big is B.C.’s COVID-19 deficit? We’ll find out April 20

More borrowing expected as pandemic enters second year

The first of 11 Dash 8 Q400 aircraft's have arrived in Abbotsford. Conair Group Inc. will soon transform them into firefighting airtankers. (Submitted)
Abbotsford’s Conair begins airtanker transformation

Aerial firefighting company creating Q400AT airtanker in advance of local forest fire season

The Canada Revenue Agency says there were 32 tax fraud convictions across the country between April 2019 and March 2020. (Pixabay)
Vancouver man sentenced to 29 months, fined $645K for tax evasion, forgery

Michael Sholz reportedly forged documents to support ineligible tax credits linked to homeownership

Then-Liberal leader Andrew Wilkinson looks on as MLA Shirley Bond answers questions during a press conference at Legislature in Victoria. (Chad Hipolito / THE CANADIAN PRESS)
B.C. Liberal party to choose next leader in February 2022

Candidates have until Nov. 30 to declare whether they are running

After nearly 10 months of investigations, Mounties have made an arrest in the tripping of an elderly woman in Burnaby this past April. (RCMP handout)
VIDEO: Mounties charge suspect for tripping elderly woman near Metrotown in April

32-year-old Hayun Song is accused of causing bodily harm to an 84-year-old using her walker

British Columbia provincial health officer Dr. Bonnie Henry arrives to view the Murals of Gratitude exhibition in Vancouver, on Friday, July 3, 2020. THE CANADIAN PRESS/Darryl Dyck
Death threats mount against Dr. Bonnie Henry, sparking condemnation from Horgan, Dix

Henry has become a staple on televisions in homes across British Columbia since January 2020

Most Read