czechia-prague: weather stations./ i/25, i/13 equipment for operational information - i. stage./ this is the realization of the first stage of three semi-portals, including the foundation structures, the addition of guardrails and the necessary related modifications. information semi-portals will be installed on road i/25 at km 13.663 and on road i/13 at km 11.162 and 12.983. their purpose will be to ensure timely and sufficient information for road traffic participants about the state of communication depending on climatic phenomena, especially in winter to increase the safety and smoothness of road traffic.