TUNNELS. A "Tunnel" shall be defined as a subterranean excavation, lined or unlined, which because of its length necessitates an employee or employees working underground for a distance of ten (10) feet or more. On all work classified as "Tunnel," the tunnel classification and rates shall apply to the entire length of the tunnel, from portal to portal. A tunnel whose horizontal grade is over thirty percent (30%) and less than sixty percent (60%) shall be defined as a "Raise." A tunnel whose horizontal grade is greater than sixty percent (60%), and whose depth is more than twice its largest horizontal dimension, shall be defined as a "Shaft." The above definitions of work shall apply also to the work of timbering and lining of tunnels (raises and shafts) as described above.
TUNNELS. The division between pile drivers' and miners' work on subways or tunnels, where the interior is to be constructed by tunneling methods, shall be at the portal of the subway or tunnel.
TUNNELS. A "Tunnel" shall be defined as a subterranean excavation, lined or unlined, which because of its length necessitates an employee or employees working underground for a distance of ten feet or more. On all work classified as "Tunnel, ' the tunnel classification and rates shall apply to the entire length of the tunnel, from portal to portal. A tunnel whose horizontal grade is over 30 percent and less than 60 percent shall be defined as a "Raise. " A tunnel, whose horizontal grade is greater than 60 percent, and whose depth is more than twice its largest horizontal dimension, shall be defined as a "Shaft.' The above definitions of work shall apply also to the work of timbering and lining of tunnels (raises and shafts) as described above.
TUNNELS. When a Technical Engineer is working in a tunnel, they shall receive $3.00 over their regular rate.
TUNNELS save and except cable conduits (utilities), pipelines and sewer and watermain tunnels.
TUNNELS. The Parties agree that they shall explore in good faith the potential inclusion of the tunnels located on North Dam and Pepperell’s property into the long range planning of additional pedestrian access ways over North Dam and Pepperell’s property.
TUNNELS. Tunnels of 500m or more in length shall be equipped with comprehensive facilities and dedicated management for operation, maintenance and emergency response. Tunnels with lengths not exceeding 500m and roads having characteristics of tunnels, such as underpasses and roads within noise enclosures or under a deck, shall be equipped with facilities commensurate with the safety risks. The design speed of tunnels in terms of alignment and lane width shall be the same as the approach roads, unless special provisions are made for the adaptation of drivers. Tunnels and their approaches shall, as far as possible, be free from unfavorable geometric conditions including sharp curves and steep grades. At-grade intersections shall be located with adequate distance away from tunnels and grade-separated intersections are not generally permitted inside a tunnel unless a very high level of safety features is incorporated. Speed limits inside tunnels shall be determined on the basis of safety risks and shall not exceed 110km/h for unidirectional traffic and 80km/h for bidirectional traffic. Overtaking shall not be permitted inside bidirectional tunnels and is generally discouraged inside unidirectional tunnels. No pedestrians or slow vehicles shall be permitted inside tunnels except where operational conditions are suitable or else appropriate facilities are provided. There shall be adequate facilities and plans to cope with unauthorized vehicles, incidents, fire and maintenance needs through implementation of lane closure, tunnel tube closure, tunnel full closure and, where appropriate, single tube contra-flow operation. Facilities for inspection, emergency parking and emergency response shall be provided at or in the vicinity of tunnel portals of major tunnels. Consideration shall be given to the provision of laybys and vehicle cross passages inside tunnels exceeding 1,500m in length. Emergency stations consisting of an emergency telephone and at least two fire extinguishers shall be provided at intervals not exceeding 150m. Escape facilities shall be provided at intervals not exceeding 500m. An emergency signing system on separate power source shall be provided to indicate laybys, cross passages, emergency stations, emergency exits and evacuation routes. Essential traffic signs include speed limits, length of tunnel and, where appropriate, any special restrictions. Where intersections are located in the vicinity of a tunnel, adequate advance direction signs shall be prov...
TUNNELS. All existing tunnels are to BG rolling stock standard clearance. Total number of tunnels: 57 Nos.
TUNNELS. While the network is based on IP/MPLS, the equipment shall also support encapsulation in GRE and IP, providing more flexibility to expand the network through third party networks if required.
TUNNELS. All bores/tunnels for mainline installation shall be staked at the start and end of the bore/tunnel. Points shall be set direct (horizontally) and offset a distance that will not be disturbed during construction (horizontal and vertical) with iron and witness lath.
