bicisenda bicycle bike lane carril bici ciclovía cycling cyclist ejercicio exercise grayscale grey health lane leisure minimalistic outdoors pavement pictogram pictograma road sign signo training workout american blizzard castle cathedral catholic Chirstmas choir church colorado dark Estes Park evening god jesus light march snow snowy wind winter advice alert animal announcement appropriate behavior appropriate behaviour blue care careful caution communicating communication concern control directions dog dogs informing lead leash restrain restrained restricted restriction rules signs warning white appropriate-behavior appropriate-behaviour be-careful beware cyclists disability disabled lookout observant path pathways pedestrians risk risks safety share sharing track walk walkers walking watch watch-out advising avoid ban banned behave black communicate denied directive information no-golf not-allowed not-permitted permission-denied prohibited prohibition red restrictions risky signage acceptable allocated allocation approved arrow directing direction directional gray indication indicator letter lettering off-road parallel parking parking-bay public pullover roadside symbol symbols word wording access-denied access-limited behavior behaviour cautious keep-out keep-to-path no-access no-entry