winter season driving tips and traffic regulation rules. close-up of a "low shoulder" orange road sign.

regulation shoulder template driving traffic closeup winter season orange vector rules snowy tips road sign flat low icy alert american attention blizzard cartoon caution clipart cold conditions covered dangerous drive school edge flat freeze front frost hazard ice icon lane low path pavement risk road safety shoulder sign signage skid slip slippery snow snowfall snowflake snowstorm snowy street surface symbol traffic travel vector warning weather winter zone