As most of the Riau Islands consists of oceans and outlying islands, land transportation is only limited to the larger islands in the province, such as Batam and Bintan. As of 2014, there are 4,954 km (3078 mi) of connected roadways in the Riau Islands, with 334 km (208 mi) being national highways, 512 km (318 mi) being provincial highways and the rest being city/regency highways. Most of the main roads in the Riau Islands has been paved, but there are still road sections that remain unpaved, especially in the outlying regions. Despite this, efforts has been taken by the government to improve road infrastructure in the regions, such as building more roads and improve existing roads, as well as building new bridges to connect river and islands in the province.