A single controller can manage up to 500 meters (specifically calculated based on the distance between sections, control method, and cable size), or 200 active spike/inductive markers. A 2-core 2.5~6 mm² cable with + and - poles for the bus needs to be laid on both sides of the road (since inductive markers operate at a DC 24V working voltage, long lines can experience significant loss, thus increasing the cable diameter is necessary to reduce voltage drop and ensure proper functioning of the end markers), and then all inductive markers should be connected to the bus together.