Blue service signs on highways indicate which types of facilities?

BLUE HIGHWAY SERVICE SIGNS: Blue rectangular signs direct motorists to services available at highway exits. Service categories: GAS: Petroleum leaf or brand logo; FOOD: Fork and knife symbol; LODGING: Bed symbol; CAMPING: Tent symbol; REST AREA: Person walking symbol; HOSPITAL: Cross or 'H'; TOURIST INFORMATION: 'I' in circle. Blue signs typically appear at 1 mile and 1/2 mile before the exit and at the exit itself. Businesses pay to be listed on blue service signs — only businesses within a specified distance of the exit qualify. If you need a specific service (hospital in particular), watch for blue signs rather than looking for standalone facility signs. HOSPITAL SIGNS: The blue 'H' is standardised nationally — following it will lead to emergency medical care.