Overbygning/Planoverganger

UNDER UTARBEIDELSE

2 Functional requirements

2.1 Design loads

This specification applies to 4 different level crossing classes depending on the road traffic type:

• level crossings for freight terminals
• level crossings for heavy and 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 125 ton axle load.

2.1.2 Level crossings for heavy and normal traffic

Min 10 ton axle load

2.2 Track construction

Level crossing systems shall be designed to accommodate the following track constructions:

• 60E1 rails on JBV 60 concrete sleepers in ballasted track with 60 cm (c-c) sleeper distance
• 54E3 rails on JBV 54 concrete sleepers in ballasted track with 60 cm (c-c) sleeper distance
• 49E1 rails on JBV 54 concrete sleepers in ballasted track with 60 cm (c-c) sleeper distance
• 54E2 rails on JBV 54 concrete sleepers in ballasted track with 60 cm (c-c) sleeper distance
• 54E3 rails on Type_X wooden sleepers in ballasted track with 52 cm (c-c) sleeper distance
• 49E1 rails on Type_X wooden sleepers in ballasted track with 60 - 65 cm (c-c) sleeper distance

2.5 Maintanability

• must be able to split elements
• max weight
• lifting
• Fastening

2.10 Min track cant

Must be able to accomodate up to 180 mm cant

3 Construction

3.1 Geometrical requirements

• Min heigth of surface above rail top (20 mm?)
• Flange width