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PhX Gauging Software

Gauging Techniques

Gauging is the engineering practice that ensures that there is enough space to allow vehicles, structures and electrification to operate together safely and reliably. As trains get bigger and faster so the space envelope required to operate the vehicles gets larger too. Gauging uses clearance assessment tools to calculate what vehicles can fit where and, if required, the amount infrastructure modification that is required.

Please select the appropriate gauging method for further information:-

Absolute Gauging Assessment

An accepted method of calculating clearance between infrastructure and vehicles. It is essential to demonstrate safe operation of vehicles. It includes fixed allowances for movements, tolerances and clearance.

Comparative Gauging Assessment

An accepted method of demonstrating that new rolling stock can be operated in the shadow of existing rolling stock which already has operational route clearance on a specific route.

Probabilistic Gauging Assessment

Clearance simulation that uses distributions for tolerances and movements, instead of fixed allowances (as used in absolute and comparative gauging).

Stepping Distance Assessment

A static calculation of lateral, vertical and absolute distances between vehicle steps and platforms.

Dynamic Pantograph Gauging

DGauge offers the only tool for fully dynamic pantograph gauging calculations. Including sway, wire position and roll calculated from local wire conditions.

Dynamic Freight Gauging

DGauge offers not only static gauging but third-generation dynamic gauging of freight according to local conditions such as speed and weather to remarkable accuracy.

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