RESERVES OF THE CRUISING SPEED IN THE CASE OF SPEED RESTRICTIONS

Abstract

Power consumption rate setting influences energy saving in the process of train traction. Possible growth of cruise, line and route speed is limited by track infrastructure, safety requirements and by additional power consumption.

Therefore there is a problem of assessment of possible cruise speed growth under the conditions when there are speed restrictions due to the infrastructural issues (there are 4900 speed limits imposed a long of about 6000 km within the rail network of JSC Russian Railways), as well as of estimation of supplementary power inputs.

Such a system should be completed by the methods of statistical assessment of power and time losses caused by imposed speed restrictions. The dependencies between specific power consumption rates for the traction are found, given the example of cruise speed at Moscow-Vyazma track section. The number of coaches in a passenger train is also considered as specific indicator.

The analysis of received data permitted to decompose singular restrictions into point and prolonged limits. The survey of railway staff opinions helped to determine certain dependencies between speed, train length, and some safety precautionvalues to be further used to compute time and electric power losses.