The Trans-Sumatran Highway runs along the length of the province. Riau serves as a junction of the highway, with North Sumatra to the north, Jambi to the south and West Sumatra to the west. Most of the roads have been paved, but there are some sections that is in poor condition. Road damage was allegedly due to the large number of trucks carrying palm oil crops passing from Riau to North Sumatra or vice versa. As part of the Trans-Sumatra Toll Road program, the government is currently constructing the 131,48 km long Pekanbaru–Dumai Toll Road, which would connect Pekanbaru, the provincial capital and the port city of Dumai on the Strait of Malacca. The first section between Pekanbaru and Minas is expected to begin operation in December 2019 and the whole toll road is expected to begin operation in 2020. Another toll road connecting Pekanbaru and Padang in West Sumatra is also under the planning stage. Construction is expected to start on the Riau side due to land clearing issue on the West Sumatran side. The project would also include the construction of the construction of an 8.95 km tunnel in the Payakumbuh area that will penetrate the Bukit Barisan Mountains, which would be the longest tunnel in Indonesia.