Opinion: A back to school primer on safety

There are some basic laws at play every time we drive a vehicle – and they aren't just the ones enforced by police.

As Chilliwack students stream back to school this week, parents (and motorists in general) should do a little homework.

One of the most important subjects worthy of review is basic physics.

Too often we forget that the vehicles we travel in are enormous chucks of metal that when travelling forward require a huge amount of energy to stop.

The bigger the mass and the faster the speed, the more time and energy is needed to stop it.

An average vehicle travelling 50 kilometres per hour, for example takes 13 metres to stop once the brakes have been fully applied. A vehicle travelling just 10 kilometres faster takes 20 metres to stop.

And that’s just the braking time under dry condition. What also increases is the reaction time.

Combined, the stopping distance between vehicles moving 50 or 60 kilometres per hour can be a difference of 20 metres.

Most school zones limit speeds to 30 kilometres per hour.

And there’s a reason.

At that speed, the stopping distance (reaction and breaking combined) is roughly 17 metres.

But there’s more. When young bodies are hit by vehicles, they are more likely to suffer life-threatening or life-altering injuries, says Safe Kids Canada.

And the faster the speed at impact, the more severe those injuries will be.

Indeed, for a pedestrian hit at 30 kilometres per hour, the survival rate is around 95 per cent.

Double the speed to 60, and the survivability drops to just 10 per cent.

Consider this: Two drivers notice the same pedestrian in the road 37 meters away. One is travelling at 30, the other is at 70. The one doing 30 has plenty of time to stop. The driver doing 70, however, will likely hit the pedestrian at 43 kilometres per hour.

Today’s vehicles have been built for comfort. The ride is smooth, and speeds are easily disguised.

Braking has been improved, airbags and seatbelts installed. Even onboard computers that can detect objects in our path.

What hasn’t changed is the basic physics under which all these vehicles operate.

And managing those physical laws requires drivers who are aware their surroundings, and cognizant of their vehicle’s limitations.

Just Posted

A student prepares to throw a plate full of whipped cream at principal Jim Egdcombe’s face as vice principal Devin Atkins watches as part of a fundraiser at Leary Integrated Arts and Technology elementary on Friday, June 11, 2021. (Jenna Hauck/ Chilliwack Progress)
The pied principals: Chilliwack elementary staff get messy for charity

Cops for Cancer fundraiser saw kids ‘pie the principal’ at Leary elementary in Chilliwack

Chilliwack potter Cathy Terepocki (left) and Indigenous enhancement teachers Val Tosoff (striped top) and Christine Seymour (fuchsia coat), along with students at Vedder middle school, look at some of the 500-plus pinch pots on Thursday, June 10 made by the kids to honour the 215 children found at Kamloops Indian Residential School. (Jenna Hauck/ Chilliwack Progress)
Chilliwack students make hundreds of tiny clay pots in honour of 215 Indigenous children

‘I think the healing process has begun,’ says teacher about Vedder middle school project

Chilliwack cocaine trafficker Clayton Eheler seen with a tiger somewhere in Asia in 2014. Eheler was sentenced to nine years jail in 2018, but was released on bail in October 2020 pending his appeal of conviction.(Facebook)
Director of civil forfeiture seeks $140,000 from Chilliwack drug dealer’s father-in-law

Clayton Eheler’s father-in-law Ray Morrissey caught with money in Fort St. John by B.C.’s gang unit

Jordyn Huitema plays for the Canadian national women’s soccer team. (Soccer Canada photos)
Chilliwack’s Jordyn Huitema and Canada battle Czechs to 0-0 draw

Huitema’s national women’s soccer squad played a friendly match against the Czechs in Spain

Hutch Hotels Ltd., which owned the former Alder Inn (which was demolished in November 2020), is among the defendants in a lawsuit related to an alleged impaired-driving crash in January 2017. The civil suit also names S & L Kitchen and Bar in Abbotsford. (Black Press file photo)
Two Fraser Valley bars named in lawsuit related to alleged impaired-driving crash

S & L Abbotsford and Alder Inn being sued by passenger in 2017 rollover collision

t
How to tell if a call from ‘CRA’ is legitimate or a scam

Expert says it’s important to verify you really are dealing with the CRA before you give out any info

The rainbow flag flies beside the Canadian flag outside the University of the Fraser Valley’s Chilliwack campus on June 26, 2020. Monday, June 14, 2021 is Flag Day, and also June is Pride Month. (Jenna Hauck/ Chilliwack Progress file)
Unofficial holidays: Here’s what people are celebrating for the week of June 13 to 19

Flag Day, Garbage Man Day, International Panic Day all coming up this week

British Columbia-Yukon Community News Association’s 2021 Ma Murray Awards were handed out during a virtual ceremony on Friday, June 10. (Screen grab)
Black Press Media winners take gold at B.C. and Yukon journalism awards

Publications received nods in dozens of categories

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Prime Minister Justin Trudeau greets campers while visiting McDougall, Ont. on Thursday, July 19, 2018. THE CANADIAN PRESS/Frank Gunn
71% of B.C. men say they’d prefer to go camping with Trudeau: survey

Most British Columbians with plans to go camping outdoors say they’d prefer to go with Trudeau or Shania Twain

Members of the Department of Fisheries and Oceans’ Marine Mammal Response Program rescued an adult humpback what that was entangled in commercial fishing gear in the waters off of Entrance Island on Thursday, June 10. (Photo courtesy Marine Mammal Response Program)
Rescuers free humpback ‘anchored’ down by prawn traps off Vancouver Island

Department of Fisheries and Oceans responders spend hours untangling whale

A Comox Valley shellfish operator pleaded guilty and was fined $10,000 in provincial court in Courtenay earlier this year. Record file photo
B.C. clam harvester fined $10,000 for Fisheries Act violations

Charges against three others were stayed in Courtenay Provincial Court

Frank Phillips receives a visit from his wife Rena at Nanaimo Seniors Village on their 61st wedding anniversary, March 31, 2020. Social visits have been allowed since COVID-19 vaccination has been offered in all care homes. (Nanaimo News Bulletin)
B.C. prepares mandatory vaccination for senior care homes

180 more cases of COVID-19 in B.C. Friday, one more death

Lorraine Gibson, 90, received a COVID-19 immunization at the South Surrey Park and Ride vaccination clinic. (File photo: Aaron Hinks)
Surrey has had 25% of B.C.’s total COVID-19 cases

Surrey recorded 4,012 cases in May

Most Read