英文關鍵字
background
business
button
car
city
color
cross
crossing
crosswalk
design
equipment
finland
green
human
industry
information
light
lights
lock
male
modern
nobody
pedestrian
pedestrians
power
public
push
road
safe
safety
security
service
sign
signal
stop
street
symbol
technology
traffic
transportation
urban
wait
walk
warning