Lighten Up Boulder Safety Campaign

Cycling can be a great way to travel all year around. However, as fall sets in and daytime light is reduced, visibility is very important especially when riding at night.

Fall Giveaway Events

Please stay tuned for more details on the 2021 Lighten Up Boulder campaign.

Be Safe and Be Seen

Cyclists are reminded to use proper lights and reflective gear to stay visible while riding between dusk and dawn, year-round.

The Boulder Revised Code requires all cyclists traveling between sunset and sunrise to equip their bikes with both a mounted white light on the front and a red reflector on the back (B.R.C. 7-5-11: Bicycle Headlight and Reflector Required).

Riding at night

  • Use a white front light, red rear blinking light at night or when visibility is poor
  • Wear bright colors and/or reflective gear
  • Add sidelight or reflectors on wheels to be more visible
  • A stronger headlight (300 lumens or above) is recommended on multi-use paths, where light is low and is much darker at night than compared to city streets

Walking at night

  • Wear light-colored or reflective clothing, especially in stormy weather or at night. Carry a flashlight at night to see and be seen.
  • At a crosswalk, only cross when the "start crossing" symbol is on. It's illegal to enter a crosswalk when a steady "don't walk" symbol or flashing red hand symbol is on. If you are close to an intersection with a traffic signal, you must cross at the crosswalk.
  • Where a sidewalk ends or where there are no sidewalks, walk on the outside edge of the roadway, facing traffic.
  • At intersections, make sure motorists have seen you before you step off the curb. Don't assume they will see you or stop.

More information about walking in Boulder.