On June 13, constructors made a fine tuning for conductor rail  of rubber tyred metro in Line 8,Shanghai .On the day , rubber tyred metro  APM system of Line 8 is officially completed ,which was built by Electrical Engineering Co., LTD. of CTCE Group. 　　It is understood that the third phase of line 8 is 6.689 kilometers. Different from the subway and maglev transportation system, its biggest characteristics are unmanned, electric power, rubber tire, travel on the concrete pavement by guide rail, with the features of low noise, little vibration, low maintenance cost, small turning radius, strong climbing ability, etc.