Visibility Seeing and being seen

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VisibilitySeeing and being seen
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Driver interaction 4 steps
1) Detection I see something2) Recognition I
know what it is (and its speed)3)
Decision I know what to do4) Response I do it
YOUR GOALEnable early detection and recognition
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Perception-Reaction Time
Detection and Recognition
Reaction
Visibility
Visibility
Visibility
The earlier motorists see and recognize you,the
sooner they can slow or avoid you
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NIGHT Lights and Reflectors
Maximize your visibility
DAY Contrast
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Some colors improve bothdetection and recognition
? Detection ? ? ? ? Recognition ? ? ? ?
(Is this color known to motorists as a cyclist
color?)
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Night riding equipment 1Vehicle Code
requirements
Red rear reflector White headlamp that
lights the road, visible ahead and to the
side White front reflector Yellow pedal
reflectors (front and rear) Wheel (side)
reflectors
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Night riding equipment 2Do better than the
legal minimum
Front
Headlight (may be on bike or head)
Rear
Red taillight (on bike, cargo, or head)
Blinking or solid are both legal Vest or
Triangle Leg bands (yellow or silver) a
signature Reflective wheel rims or tire
sidewalls
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Reflective Triangle
? 50x to 100x brighter than ?
? Daytime contrast? Nighttime reflectivity?
Earlier recognition
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New white LED headlightsUp to 100 hours runtime
CatEyewww.cateye.com
planet bikewww.planetbike.com
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White LED campers headlampUse as main or
additional headlight
Petzl Plus4-LED, waterproof,25 hrs at full
poweron 2 AAA cells,multiple modes,4-angle
tilting base,available at REI
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VIDEO Night-riding equipment Rear

• Video by MassBikewww.massbike.org

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VIDEO Night-riding equipment Rear
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VIDEO Night-riding equipment Front
Video by MassBikewww.massbike.org
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VIDEO Night-riding equipment Front
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Shoulder Check
Do this every time you want to move left or right
(into another driversline of travel)
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Mirrors
Helmetmounted
CycleAware
let you check behindfrequently betweenshoulder
checks
RhodeGear (U.K. photo)
Take-A-Look
Eyeglassesor sunglasses
Take-A-Look
On-head typeslet you scanall lanes easily
Trail-Gator
Handlebarmounted
Zefal