Overbygning/Planoverganger
UNDER UTARBEIDELSE
Innhold
[skjul]1 Scope
This specification applies to delivery of modular level crossing surface panel systems. The level crossing structure shall consist of internal panels to span between the rails of an individual track and external panels outside each rail together with neccesary support and fastening elements.
2 Design requirements
2.1 Design road traffic loads
This specification applies to 4 different level crossing classes depending on the road traffic type:
- level crossings for freight terminals
- level crossings for normal traffic
- level crossings for light traffic
- pedestrian level crossings
2.1.1 Level crossings for freigth terminals
Level crossings for freight terminals shall be designed to carry min 1250 kN axle load.
2.1.2 Level crossings for normal traffic
Level crossings for normal traffic shall be designed for minimum road traffic loads according to Tabell 1:
| Axle configuration | Axle distance [mm] | Minimum design load, all axles [kN] |
|---|---|---|
| single axle | - | 115 |
| dual axle bogie | 1300 - 1790 | 180 |
| 1200 - 1290 | 160 | |
| 800 - 1190 | 150 | |
| triple axle bogie | 1300 - 1790 | 240 |
| 1000 - 1290 | 220 | |
| < 1000 | 160 |
2.1.3 Level crossings for light traffic
Level crossings for light traffic shall be designed for minimum road traffic loads according to Tabell 2:
| Axle configuration | Axle distance [mm] | Minimum design load, all axles [kN] |
|---|---|---|
| single axle | - | 60 |
| dual axle bogie | 1200 - 1790 | 90 |
| 800 - 1190 | 85 | |
| triple axle bogie | 1000 - 1790 | 120 |
| < 1000 | 90 |
2.1.4 Pedestrian level crossings
Pedestrian level crossings shall be designed to carry load from pedestrians, bicycles and hand held trolleys.
2.2 Environmental conditions
- The level crossing panels, support and fastening elements shall be designed to operate in temperatures between - 40 0C and + 40 0C.
- The level crossing panels, support and fastening elements shall be designed to withstand snow and ice removal operations.
2.3 Track construction
2.3.1 Track systems
Level crossing systems shall be designed to accommodate the following track systems:
- 60E1 rails on JBV 60 concrete sleepers in ballasted track with 60 cm (c-c) sleeper distance. Pandrol FC or FE fastening system
- 54E3 rails on JBV 54 concrete sleepers in ballasted track with 60 cm (c-c) sleeper distance. Pandrol FC, FE or e-clip fastening system
- 49E1 rails on JBV 54 concrete sleepers in ballasted track with 60 cm (c-c) sleeper distance. Pandrol FC, FE, e-clip or PR-clip fastening system
- 54E3 rails on Type_X wooden sleepers in ballasted track with 52 cm (c-c) sleeper distance. Pandrol e-clip or Hey-Back fastening system
- 49E1 rails on Type_X wooden sleepers in ballasted track with 60 - 65 cm (c-c) sleeper distance. Pandrol e-clip or Hey-Back fastening system
2.3.2 Nominal track gauge
The level crossing system shall be designed to a nominal track gauge of 1435 mm.
2.3.3 Flangeways
- Level crossings shall be designed to provide a clearance to the running rail for train wheel flanges.
- Level crossings shall have a horizontal flangeway clearance in the range of 60 - 75 mm.
- The depth of the flangeway clearance shall be minimum 40 mm.
- Pedestrian level crossings shall be fitted with a flexible flangeway gap filler for closing the flangeway gap. The flangeway gap filler shall be designed to be depressed by passing train wheels.
2.4 Permissible train speed
The level crossing systems shall be designed to withstand the following minimum speed of passing trains.
- Level crossings for freight terminals: 40 km/h
- Level crossings for normal traffic: 160 km/h
- Level crossings for light traffic: 160 km/h
- Pedestrian level crossings: 120 km/h
2.5 Crossing surface
- The level crossing surface shall be level with the rail top surface and plane between the two rails.
- For multiple tracks, the level crossing surface shall be plane between each adjacent pair of rails.
- The crossing surface shall be stable under acceleration, braking and turning forces from vehichles with loads corresponding to Design road traffic loads without undue vertical displacement or horizontal movement.
- The crossing surface shall stable and not move under influence of vibration and aerodynamic forces from trains passing at speeds given in Permissible train speed
- Level crossings panels shall have a skid resistant surface providing sufficient friction between wheels and panel surface to enable safe passage of vehichles both in dry and wet conditions.
2.6 Drainage
- The crossing surface shall be designed to prevent the formation of standing water.
- The level crossing system shall be designed to allow for efficient water drainage to minimise fouling of the track bed with debris.
2.7 Maintanability
- The level crossing structure shall be designed so that it can be removed, and reinstalled or replaced, either for replacement purposes or to gain access to the track for maintenance or inspection without damage to the component parts of the level crossing structure.
- The level crossing panels shall be designed to enable easy and secure attachement of manual and mechanical lifting equipment for easy installation and removal of panels.
2.8 Electrical requirements
The level crossing system shall provide for a minimum rail to rail electrical insulation of 5 kΩ when measured in accordance with EN 13146-5
