Skip to main content

Zendrive: lunchtime driving in San Francisco riskier than rush hour

Lunch-hour driving across the San Francisco Bay Area between 11.00am and 2.00pm is riskier than morning and evening rush hour commutes with more than 50% of routes presenting a greater risk to drivers during lunch hour. These latest findings come from Zendrive’s Bay Area Commute Safety Snapshot which also revealed that the San Mateo Bridge is overall more dangerous during morning commutes between 6.00am to 11.00am.
January 23, 2018 Read time: 2 mins
Lunch-hour driving across the San Francisco Bay Area between 11.00am and 2.00pm is riskier than morning and evening rush hour commutes with more than 50% of routes presenting a greater risk to drivers during lunch hour. These latest findings come from Zendrive’s Bay Area Commute Safety Snapshot which also revealed that the San Mateo Bridge is overall more dangerous during morning commutes between 6.00am to 11.00am.


The study measured phone use and aggressive driving across 1,250,000 trips by 100,000 drivers in November 2017. It focused on 62 routes going to and from the city-county, including I-280, which it found to be more dangerous than U.S. 101.

Zendrive aggregated and anonymized 100,000 individual drivers via sensors in smartphones and analysed their behaviour in real time. It based its inquiry on phone use (handheld, hands-free; texting/emailing; and physically engaging with a phone while the vehicle is moving), rapid acceleration, speeding and hard braking.

In April 2017, Zendrive released the distracted driver behaviour survey which found that Americans use their mobile phones 88% of the time they get behind the wheel.

Jonathan Matus, CEO of Zendrive, said: "Commuters use their smartphones all day, and on the road, doing what they believe makes them more efficient multi-taskers. But that has resulted in some of the riskiest driving behaviour. Crashes and car-related fatalities are at an all-time high, in large part because of distracted driving. Our safety snapshot finds that using your phone while driving can have hazardous results. We hope to shed light on how widespread risky driving has become, and to help break hard-working commuters of these driving habits."

More information on how each major Bay Area highway and commute route ranked is available %$Linker: 2 External <?xml version="1.0" encoding="utf-16"?><dictionary /> 0 0 0 link-external here false https://www.zendrive.com/commute/ false false%>.

Related Content

  • NTSB: Uber’s AV in fatal crash ‘had software issues’
    November 6, 2019
    The US National Transportation Safety Board (NTSB) has found that an Uber autonomous vehicle which killed Elaine Herzberg last year had software flaws. NTSB released a report which says the Volvo XC60’s autonomous system software classified the pedestrian as an unknown object and determined that an emergency braking manoeuvre was needed to mitigate the collision. Uber confirmed that emergency braking manoeuvres must be carried out manually and the system is not designed to alert the driver. Data
  • Adaptive cruise control can mitigate phantom traffic jams, says Ford
    July 10, 2018
    Phantom traffic jams can be minimised through adaptive cruise control (ACC) technology, says Ford. These traffic jams occur when one driver hits the brakes and causes a chain reaction of other drivers tapping their brakes which causes traffic flow to halt. Ford conducted a test alongside Vanderbilt University researchers on a closed test track involving 36 vehicles across three lanes. https://www.youtube.com/watch?v=2GYfXxVn2Oc The motor company says the main causes of phantom jams are human fa
  • ITS World Congress 2017 call for demos
    January 3, 2017
    As part of the Montréal World Congress 2017, conference organizers are planning to feature live demonstrations of ITS technologies. The city of Montréal will create a virtual test bed on the streets adjacent to the Convention Centre. This test bed will include an arterial loop circling the Centre and a section of a nearby limited access highway that will be equipped with DSRC roadside units integrated with local signal controllers to support demonstrations of connected vehicle technologies. In order to a
  • Getaround brings car-sharing service to Atlanta
    April 8, 2019
    Getaround is launching its car-sharing platform in the US city of Atlanta, allowing residents to earn money by making their car available to rent. The company says the platform utilises cars already on the road and will therefore help to reduce traffic and congestion. Each car is equipped with Getaround Connect, a proprietary technology that allows renters to locate and unlock the car using the company’s app, removing the need to meet the owner in-person for a manual key exchange. Getaround’s safety