It is mandatory to keep headlights on while driving, even in daylight; most cars commercially sold in Latvia are equipped to make this automatic.
Three narrow gauge trains a day operate on the 33 km route between the two towns.
Domestic passenger lines with current service are: Riga International Airport is the only major airport in Latvia, carrying around 5 million passengers annually.
It is the largest airport in the Baltic states and has direct flights to over 80 destinations in 30 countries.
Airports - with paved runways total: 27 2,438 to 3,047 m: 7 1,524 to 2,437 m: 2 914 to 1,523 m: 2 under 914 m: 16 (2003) Airports - with unpaved runways total: 24 2,438 to 3,047 m: 1 1,523 to 2,438 m: 2 914 to 1,523 m: 1 under 914 m: 20 (2003) Key ports are located in Riga (Freeport of Riga and Riga Passenger Terminal), Ventspils (Free port of Ventspils), and Liepāja (Port of Liepāja).