If it's any help, there's a Doctor Yellow set in the current lineup that is similar, with the auto transfer track. But it uses blue tracks and isn't elevated.
Link to item on Amazon.co.jp
Or search for "自動のりかえ駅とドクターイエローセット"
Link to item on Amazon.co.jp
Or search for "自動のりかえ駅とドクターイエローセット"