Cities need to reimagine themselves by remaking what is possible to match what is necessary. At the heart of this, guided by better evidence of what works, they must do more to break free from cars, writes Kimberly Nicholas, associate professor of sustainability science, Lund University.

In the UK, 15% of women report experiencing harassment on buses or trains – leading to higher use of private vehicles, which many women view as safe 'cocoons' for mobility. Sharing transport through a system known as 'Mobility as a Service' could help; if the sexes adopted it at the same rate, there would be a significant positive impact on the environment, with thousands of private cars no longer needed on roads, writes Maurizio Catulli.

Dimitris Michailidis and David Hogan discuss their proposal to develop a binder and bituminous mixture which allows Reclaimed Asphalt Pavement (RAP) mixtures to be produced at lower temperatures in the cold addition process. Alongside the environmental benefits of such an approach, it is also hoped that reduced ageing of the material through the mixing process will result in improved performance.

Foreign object debris on runways and bird strikes cost the airline industry billions of euros annually and create lengthy delays for passengers. Now, a company is developing a new radar system to deal with the multiple threats, and is focused at real-time identification of hazardous objects within a 10km radius of runways.

Students propose solutions to reimagine the customer experience for Hong Kong’s airport city development. 

The traditional approach to road pavement design can be traced back to the 1950s in the UK and relied heavily on empirical practice; it was acknowledged at that time that a pavement structure is difficult to model theoretically and incorporates materials with complex mechanical properties, write TII's Tom Casey and Eddie Winterlich.