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Driving


— Health and Wellbeing

New marijuana breath test promises accurate readings of THC levels

Detecting marijuana by way of a road-side test seems an obvious enough measure as the legalization movement gathers momentum, but an effective technology is yet to really be established. Current approaches relying on blood and urine samples are unable to distinguish between somebody driving under the influence, and somebody that has simply used the drug sometime in the last month. But one US company now claims to have developed a breathalyzer system that can measure levels of THC in one's breath to determine how much a road user is impaired when behind the wheel.

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— Health and Wellbeing

Is a breath test for marijuana nothing but a pipe dream?

Difficulties in testing for THC mean that curbing cannabis use amongst drivers hasn't been all that straightforward. Though marijuana use can be detected in the saliva for up to 24 hours after use, it can show up in blood and urine samples for anywhere up to a month. Existing methods like blood and urine samples therefore make it hard to determine whether a driver is actually impaired at the time that they jump behind the wheel. But companies like Canada's Cannabix are working on portable breathalyzers designed to test exclusively for recent use of the drug, a solution that could be of great assistance to law enforcement personnel in keeping impaired drivers off the road.

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— Automotive

Study suggests that HUD tech may actually reduce driving safety

Cruising at speed down the highway with a heads-up display (HUD) constantly feeding data into your line of sight can make anyone feel like a jet pilot on the road; totally in control of your vehicle and primed to avert any potential danger that comes your way. However, recent studies by the University of Toronto show that the HUD multi-tasking method of vehicle piloting may well not provide the extra margin of safety that we think it does. In fact, according to the researchers, it could be downright dangerous.

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— Health and Wellbeing Review

Review: Alcomate Revo brings pro-level alcohol screening to consumers

Drunk driving is a serious problem and – despite being conscientious – at a certain point in the evening, trusting one's own judgement means trusting someone who isn't sober enough to make the call. While inexpensive breathalyzers costing less than US$30 are available, they're not the most reliable, while the more professional models need to be sent back to the factory on a regular basis for recalibration. Recently, we got hold of an AlcoMate Revo by AK GlobalTech. The device is aimed at the consumer market, and uses a replaceable sensor module that eliminates the need for recalibration. We put it through its paces.

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— Good Thinking

Sweat-analyzing AlcoStop system could thwart would-be drunk drivers

There are already in-vehicle systems that keep people from driving while intoxicated, although most of them require users to blow into a breathalyzer. The prototype AlcoStop system, however, takes a less intrusive approach – it measures users' blood alcohol levels by analyzing their sweat via built-in sensors, and won't allow the car to start if those levels indicate that they're too drunk to drive. Read More
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