The A4 is a national road in Latvia which is part beltway around Riga, connecting Baltezers to Saulkalne.[1] The road is also known as Riga bypass. The road is part of European route E67, European route E77 and Latvian TEN-T road network. The length of A4 is 21 kilometer. Currently A4 has 1x1 lanes in all its length. In 2011/2012 period half of A4 will be reconstructed,[2] and its planned that around year 2014 widening of the road to 2x2 lanes will start. Because of this, it would receive an expressway or motorway status, and the current 90 km/h speed limit would be raised.[3] The average AADT of A4 in 2011 was 7026 cars per day.
E67 / E77
