A major design objective of the new S7 trains was to speed up boarding. Tricon followed the layout motto 'Every door, every option', which means that, for the first time, passengers will find the complete range of functions behind each door. No more searching for luggage, etc. The exterior design references classic themes like functionality, purity, and simplicity, and extols the transportation virtues of precision and rigor. Oval is the basic design form, both in exterior and interior. Indirect lighting at the doorposts creates an inviting atmosphere and enhances security by signaling the opening and closing of the doors.