12m low-floor 3-door walking chassis, monocoque body structure,platform-based design,left hand drive, front/middle/rear passenger doors at right side,rear placed PM synchronous traction motor. Rigid portal type front axle, integral rear driving axle,air suspension, and ECAS function all provide great comfort for passengers. Double-line pneumatic braking system, front/rear disc type service braking, spring parking braking, motor assisted braking with braking energy recovery.24Vvoltage for electrical control system of vehicle,3-level CAN-BUS electrical control mode for vehicle body.