The, signed as Route 4 is one of the radial routes of the Shuto Expressway system in the Tokyo area. Route 4 runs west from Miyakezaka Junction (with the Inner Circular Route) in Chiyoda-ku and runs for 8.44 miles (13.5 km) through Shinjuku-ku, Shibuya-ku, and Suginami-ku. The Route 4 designation ends at the Takaido Interchange and the expressway continues as the intercity Chūō Expressway to Nagoya via Yamanashi and Nagano Prefecture.
| Municipality | Exit/interchange name | Destinations | Notes | |
|---|---|---|---|---|
| Chiyoda-ku | Miyakezaka JCT | Route C1 Outer Loop to Ginza and Hakozaki Route C1 Inner Loop to Meguro and Haneda | ||
| Shinjuku-ku | Gaien | National Stadium of Japan, Meiji Jingu Stadium | ||
| Shibuya-ku | Yoyogi | Meiji Jingu Shrine | Outbound exit/inbound entrance | |
| Shinjuku-ku | Shinjuku | Shinjuku Station, Tokyo Metropolitan Government Office | No outbound entry ramp | |
| Shinjuku-ku | Nishi-shinjuku JCT | Route C2 Outer Loop to Kumanocho JCT(Route 5). Route C2 Inner Loop to Ohashi JCT(Route 3) and Bayshore Route. | Outer Loop connected on Dec 22. 2007. Inner Loop connected in 2009). | |
| Shibuya-ku | Hatsudai | National Route 20, also known as Kōshū Kaidō avenue | Inbound exit/outbound entrance | |
| Shibuya-ku | Hatagaya | National Route 20 | Outbound exit/inbound entrance | |
| Suginami-ku | Eifuku | National Route 20 | ||
| Suginami-ku | Takaido | Kampachi-dori (Tokyo's #8 ring road) | No outbound entry rampway Road continues as Chūō Expressway |