As roads will be open to vehicular traffic as usual, all participants must wear
- a reflective vest or similar gear, and
- a white light on the front, and
- a flashing red light on the back.
Reflective gear
Nathan
http://www.nathansports.com/visibility/reflective-gear
Headlamps: How to choose?
http://www.rei.com/learn/expert-advice/headlamp.html
Petzl
http://www.petzl.com/us/outdoor/headlamps/allheadlamps-petzl
Black Diamond
http://blackdiamondequipment.com/en/headlamps-and-lanterns
Princeton
http://www.princetontec.com/product-overview-page-type-headlamp