Road Safety

The system could utilize driver-facing versions of the cameras currently used as dashcams, potentially not allowing the car to start if intoxication is detected

In-car cameras could soon spot intoxication on drivers' faces

It's better to spot drunk drivers as soon as they get in their car, not once they've already been dangerously driving for some time. A new facial tracking system was created with that fact in mind, and it utilizes a regular in-vehicle video camera.

The metastudy looked at 28 published studies and concluded there is no strong or consistent link between THC levels in blood or saliva and driving impairment

Psychedelics

Blood or saliva THC levels found to be poor sign of driving impairment

A new meta-study has concluded blood or saliva THC concentrations are not effective ways to measure cannabis-induced driving impairment. The findings indicate impairment tests should be developed instead of looking to develop a marijuana breathalyzer.

New research suggests smoking cannabis can generally impair one's driving ability for between three and five hours

Psychedelics

Study calculates duration of driving impairment after smoking cannabis

How long is a person’s ability to safely drive impaired after consuming cannabis? A meta-analysis suggests intoxication spans anywhere from three to 10 hours, raising questions over some roadside tests detecting traces of THC days after consumption.

A new study detected no impairments to driving when CBD was consumed alone

Psychedelics

World-first cannabis study finds CBD alone doesn't impair driving ability

A study into the effects of cannabis on driving in a real-world context has found CBD alone does not impair driving ability. The landmark finding promises to be invaluable in guiding road safety regulations as cannabis laws shift across the globe.

A study has found no differences in intoxication or impairment between those smoking high-THC concentrates and those smoking lower-THC flowers

Psychedelics

Study finds stronger marijuana doesn’t lead to higher levels of intoxication

A study has found smoking high-THC marijuana or concentrates does not result in greater levels of intoxication. The research adds weight to a body of evidence suggesting proposed roadside THC tests may not correlate with driving impairment.

The system uses in-car cameras and computer algorithms to watch for hand movements that deviate from those normally associated with driving

Science

Car software knows when you're texting and driving

We've already seen numerous systems that can detect if drivers are getting drowsy. Now, however, engineering researchers at Canada's University of Waterloo have created software that can tell if the driver is engaging in distracting activities such as texting.