The Japan Road Traffic Information Center (JARTIC) is an information service focused on road conditions in Japan. It publishes traffic information for both expressways and ordinary roads, helping the public understand road circumstances and plan journeys with relevant updates. Its coverage also includes congestion forecasts, which provide advance information about expected traffic slowdowns, and planned road openings, offering details about routes or sections scheduled to become available.

By covering different types of roads, JARTIC serves as a reference for people seeking practical traffic and route information. Its published content centers on road travel: conditions on expressways, conditions on general roads, anticipated congestion, and upcoming openings. This makes its information relevant to drivers and others who need to consider traffic when traveling in Japan.

The service combines information about current road conditions with forward-looking notices, so users can consult both present updates and forecasts. JARTIC’s stated role is to make these road-traffic details and forecasts publicly available, supporting informed travel planning across Japan