GUIDING PRINCIPLES FOR THE DESIGN OF POINTS AND CROSSINGS; THEORETICAL STUDY AND PRINCIPLES
The present Interim Report No. 1 deals with the second part of the Programme of Work i.e. "Theoretical study and guiding principles" for the design of switches and crossings. Taking as a basis the three general requirements (2.1) i.e. safety from derailment, steadiness of travel on switches (so far as comfort is concerned), and economy-the Interim Report deals with conditions arising from the requirements of the Permanent Way and Operating Departments as well as the running of vehicles. A distinction is made between the geometrical (2.21) and the kinematic and dynamic conditions (2.22). The section entitled "Kinematic and Dynamic Conditions" (2.22) deals with speeds on the diverging track, with lateral forces and accelerations and with the pulling of switches, the choice of these various conditions being made for economic maintenance of the switch and crossing work. The section 2.30 deals with the principles of the construction of switches and crossings. The document gives a range of speeds (2.40) recommended for turnouts in standard 54 and 60 kg/m rails.
- Restrictions on the use of this document are contained in the explanatory material.
International Union of RailwaysOffice of Research and Experiments
- Publication Date: 1964-3
- Features: Tables;
- Pagination: 22 p.
- TRT Terms: Construction; Costs; Crossovers; Derailments; Maintenance of way; Rail (Railroads); Ride quality; Safety; Structural design; Superelevation; Technology; Turnouts; Vehicle dynamics; Velocity
- Uncontrolled Terms: Lateral dynamics; Switches
- Geographic Terms: France; Netherlands; United Kingdom
- Old TRIS Terms: Question d72; Rail design
- Subject Areas: Construction; Finance; Railroads; Safety and Human Factors;
- Accession Number: 00033216
- Record Type: Publication
- Report/Paper Numbers: D72/RP 1/E Intrm Rpt.
- Files: TRIS
- Created Date: Dec 4 1994 12:00AM