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  • What is a ‘Botts Dot’? A field guide to Caltrans’ road markers

    Caltrans employs a variety of devices and techniques to designate highway lane lines, including some that offer drivers subtle clues. Here are some old and new technologies, starting with the famous Botts Dot.

Caltrans employs a variety of devices and techniques to designate highway lane lines, including some that offer drivers subtle clues. Here are some old and new technologies, starting with the famous Botts Dot. Sharon Okada The Sacramento Bee
Caltrans employs a variety of devices and techniques to designate highway lane lines, including some that offer drivers subtle clues. Here are some old and new technologies, starting with the famous Botts Dot. Sharon Okada The Sacramento Bee

California drivers: Say goodbye to the Botts Dot, the bump that made your car go thump

January 20, 2017 04:00 AM

UPDATED January 23, 2017 12:39 PM

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More Videos

How California measures ‘road smoothness’ and why it matters 1:08

How California measures ‘road smoothness’ and why it matters

See how much California's gas tax will rise through 2020 2:11

See how much California's gas tax will rise through 2020

Jerry Brown says gas tax vote was above board 0:27

Jerry Brown says gas tax vote was above board

New loudspeakers will allow SacRT security to talk to passengers at stations 1:03

New loudspeakers will allow SacRT security to talk to passengers at stations

Bonded pups at Bradshaw shelter can't stop kissing each other 0:38

Bonded pups at Bradshaw shelter can't stop kissing each other

What to do if you smell gas 0:57

What to do if you smell gas

Watch Thomas Fire flames continue to rage behind Montecito home 0:37

Watch Thomas Fire flames continue to rage behind Montecito home

Retired fertility doctor pleads guilty to inseminating patients with own sperm 0:51

Retired fertility doctor pleads guilty to inseminating patients with own sperm

Meet Folsom High's star football brothers, Joe and Daniyel Ngata 1:19

Meet Folsom High's star football brothers, Joe and Daniyel Ngata

Woman escorted out of Starbucks after asking patrons to stop speaking 'oriental' 1:12

Woman escorted out of Starbucks after asking patrons to stop speaking 'oriental'

  • How California measures ‘road smoothness’ and why it matters

    California’s newly paved freeways and highways are built to standards of smoothness that are the strictest in the country. Here is how Caltrans tests them.