A technology first used in wind turbines is now being used to cut fuel emissions in trains. Created by Edinburgh-based Artemis Intelligent Power, the digitally controlled hydraulic pump is being used by train operator ScotRail to save over 9,000 litres of diesel per carriage per year. We find out more about the project and how digital displacement technologies could be used to cut fuel by up to 30%.

In infrastructure, we map the most significant and innovative of the 63 automated metro lines worldwide, and find out more about Network Rail’s project to cut down trees that drop leaves across 20,000 miles of its track in an attempt to reduce delays and disruption.

Elsewhere, we learn how Sweden’s national train operator SJ is using augmented reality to help passengers navigate its stations, gather the views of industry experts on how rail fares could be improved in the future in a special roundtable feature, and take a look at the world’s most dangerous rail journeys.

Read on for all this and ­­­­join the conversation on Twitter.

Katie Woodward, editor