It is also classified as a road for motor vehicles only (自動車専用道路, Jidōsha Senyō Dōro) and access is controlled with interchanges and junctions in a similar manner to national expressways in Japan.

The road closely follows the coastline of Sagami Bay, facilitating access between the Tokyo urban area and the city of Odawara in western Kanagawa Prefecture.

At the eastern terminus the Seishō Bypass continues as a toll-free road managed by the Ministry of Land, Infrastructure and Transport.

At Kōzu Interchange these vehicles are charged 150 yen at the eastbound exit and westbound entrance.

Electronic Toll Collection (ETC) is accepted for payment, however no discount programs are in effect.