The plan is to fully obtain power supply from solar energy systems and electric city. Electricity is supplied through a relay system of direct current electrification. The bus itself is a conductor of electricity, two rails built on top connect to the postal charge along the bus route. Post of next energy charge will be on the rail before the first post ends. "That's why we call it as charging relay," said by Song Youzhou, the inventors of 3D Express Coach. "This is a new discovery, there has not been elsewhere."
The system is super capacitor, a device that it can fill, empty, and save electricity quickly. Power is saved when the bus is stopped to support the bus until the next stop, the bus is back to receive the electricity supply so that there is no way out for poisonous gas. Shenzhen Hashi claimed that the operation of the bus is to save fuel up to 860 tons per year, which it means reducing the carbon emissions of 2640 tons.
Development of legged bus includes two parts. The first part is to change the model of the road and set up a station-shaped stage. Especially for bus lines, Shenzhen Hashi propose two ways to overhaul the way, that is adding tracks on either side of two-lane road or paint white lines on both sides and it use the autopilot in a bus technology which it will follow the line and running stable.
In connection with the stop, Shenzhen Hashi proposed two options. Firstly, the exit-entry passenger buses are made on one side, the same as found in Transjakarta bus, while another option is to use the built-in ladder so that passengers can go up and move to the bridge through the door on the roof of the bus.
To ensure the safety of this wide-bodied buses, in the back of the bus is fitted with an ultrasonic wave transmitter in order to prevent such a tall car truck to enter the tunnel under the bus. Laser scanner will activate an alarm in the back of the bus when there are cars running very close. In the "under" the bus there are also signs of turning the lights which it indicates the bus swerved to warn vehicle to intends underneath. Scanning radar system is also installed on the wall for the other car is not too close to the wheel of the bus.
Recently, many large cities revolutionize return traffic signal system to prioritize public buses, for example when the bus reach the intersection, so that automated red light on the other side of the road will turn to allow the bus to walk. "Bus-legged BRT method is to adopt it," said Song Youzhou. "Cars can come together to turn the bus. If not, the red light comes on to stop the car under the bus and allowing buses to turn. "
Buses are also equipped with emergency door, which opens automatically when a fire or other emergency conditions. "I use the concept of rescue with a ladder sliding as used in aircraft," he said. "That's the fastest way to save themselves."