The Nozomi, which is the fastest and most frequent service on the Tokaido and Sanyo Shinkansen lines in Japan, reaches a top operational speed of 300 km/h (approximately 186 mph). While the train is capable of slightly higher speeds in testing, it is capped at 300 km/h to balance passenger comfort, noise reduction in residential areas, and energy efficiency. The Nozomi connects Tokyo and Osaka (Shin-Osaka) in just about 2 hours and 22 minutes, and it can travel from Tokyo to Hakata (Fukuoka) in roughly 5 hours. In 2026, the fleet is primarily composed of the N700S (Supreme) series, which features advanced active suspension systems to maintain a smooth ride even at these extreme speeds and around curves. It is important to note that the Nozomi is the only Shinkansen service not fully covered by the standard Japan Rail Pass, requiring an additional "Nozomi Supplement" ticket. For travelers, the speed of the Nozomi makes it a viable and often superior alternative to domestic flying, as it travels from city center to city center with nearly 99% on-time reliability.