Polygon Mid Span with Pillar

 The lateral polygon perimeter is absolutely necessary in order to exclude air pressure noise as well as are Visual stimuli. These project constraints led to use precast segmented span erection method. This construction method is the optimal one in terms of construction speed, quantity optimization, and construction quality and risk management. IAT-MAGLEV construction, (alternatively with solar systems to implement) the concrete metal polygon type mid span which are made on factory site and they are pretend will be fabricated in a specially built factory in a suitable location at the start of the first line. After fabrication, they will be transported along the newly constructed System guide for erection. This will significantly reduce construction costs and disruption to traffic. Chosen polygon mid span bridge construction technique had to meet several requirements due to speed of construction, geometry adjustability, environment disturbance. Depending on speed requirements, the sound emission will be varied in the distance of the polygon perimeter in the construction field in width to reduce the sound pressure. Within built-up areas at low speed and the local space limiting the lateral distance to the cabin has hardly any significant effect on noise. Outside of cities at high speeds a widening