BY: Lynda Haig Thoresen | Marketing, Communication & Sustainability Manager
Sustainable driver advisory system
Sustainable driver advisory system: We are currently undertaking a mid-life upgrade on the driver advisory system that we developed with and for the Danish National Railway (DSB).
The upgrade to the sustainable Driver Advisory System involves a new Data Delivery System (DLS) and related components to be integrated in existing and new trains.
The driver advisory system assists train drivers in arriving on time to lowest possible energy consumption and CO2 emissions. It is a digital driver guide – or rather a train drivers assistant – which visually informs the train driver about the timetable and the optimal speed to reach the next destination on time. This makes it no longer necessary to pursue a destination full throttle – as the system fine tunes the driving pattern according to the train’s current location and tracks conditions ahead.
The system has proven results in a fleet wide implementation in a mixed environment of passenger and freight by many operators.
Reducing speed provides huge energy savings
As a rule of thumb, one can say that energy consumption rises somewhere between exponential and linear on the changed speed, depending on the acceleration and how fast it goes. Trains are subject to the same requirements as other means of transport. If the speed limits on the main lines can be reduced from 180 km / h to let say 160 km / h, with less breakings and accelerations – provided the driver can comply with the timetable – there are huge energy saving in the lightly reduced speed. The electronic drivers guide provides a tremendously large annual energy saving – in fact a whopping 35 million a year.