Open invitation to tender, deadline 16.11.2018, for the maintenance of technological equipment and software on the D0 motorway, which is part of the Prague Ring Road, this tender includes the twin tunnels Lochkov (1650 m) and Cholupice (1950m) and the traffic control centre at Rudna. Value of the contract is EUR6 million, excluding VAT. For bid documents https://www.tenderarena.cz/profily/RSD . Contact Martin Zoha, tel +420 725989675, email martin.zoha@rsd.cz. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=443390-2018 . 41/18.