This report complements the report entitled "Reduction of operational cost of road tunnels" which was presented and published at the Kuala Lumpur Congress in 1999. Various aspects of the management and operation of tunnels are considered. A method for providing continuity of management of safety, throughout the life of a tunnel, is described together with issues requiring consideration. The components and value of a Tunnel Management System (TMS) for the operation and maintenance of a tunnel are described. Once the tunnel management systems have been established, the service and quality levels available to a user depends not only on the nature and level of service provided by the tunnel equipment but also on the way in which the equipment is operated by the tunnel staff. Good practices are described with regard to the engagement and training of the staff involved in these activities. Finally, for the occasions when significant maintenance or refurbishment work is necessary advice is provided on possible strategies for accommodating tunnel renovation.