During their recent visit to the Kansai region, the Japanese Emperor and Empress arrived in Kyoto aboard the “Imperial Train.”
This special train operates on a unique schedule reserved exclusively for the Imperial couple. To ensure their absolute safety and privacy, no other train is permitted to overtake or run alongside the Imperial Train during its journey.
This meticulous arrangement highlights the respect and care given to the Imperial family during their travels. (News On Japan)
https://newsonjapan.com/article/147194.php