Road tunnels
- Systems design issues (e.g. comparison of ventilation systems, control/monitoring strategies, choice of automated or procedural control, traffic monitoring and control, portal emission)
- Road vehicles (emissions levels and future trends, traffic flow control, fire and smoke loads)
- Practical design solutions Papers in this section are expected to focus on a closely defined topic and clearly demonstrate a novel approach or application. Areas could include: equipment; installations; passenger/use facilities.
Railway tunnels
- System design issues (e.g. high speed transits, comparison of ventilation systems, control/monitoring strategies, choice of automated or procedural control, piston effects and loads on equipment, transient pressure alleviation, railway tunnel environment, thermal effects and humidity)
- Railway vehicles (e.g. train construction, pressure sealing/air leakage, fire and smoke resistance, geometric profile, fire and smoke load, prediction of fire development, TSIs, design criteria for and maintenance of in-car conditions)
- Practical design solutions Papers in this section are expected to focus on a closely defined topic and clearly demonstrate a novel approach or application. Topics may include pressure relief, noise mitigation, aeroacoustic ducting, micro-pressure wave mitigation, ventilated escape routes.
Practical and management issues (e.g. maintenance of ventilation systems, upgrading existing systems, air leakage between tunnels, systems specification, system testing)
Analytic techniques and validation (these papers should have a rigorous basis and validation. Topics could include flow and pressure effects in complex systems, vehicle/flow interactions, 1D, 2D or 3D simulations, interactions of multiple jets)
Discussing Key Issues
In addition to a technical programme of refereed papers, a feature of the 2003 Symposium will be an open session to raise and discuss key questions and future developments. Suggested areas for discussion include:
Automation of control
Advantages of twin tube systems
Smoke control strategies
Overhead extraction
Basis for comfort criteria
Improved compressible modelling
Improved thermodynamic modelling
Confidence in CFD modelling
Vehicle exhaust pollution - human effects, advancing
knowledge, changing criteria, environmental health issues
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