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.

Chief engineer Noel Clancy says 'it is impossible to envisage any career progression without substantial engagement in CPD'. It has helped him to keep abreast of topical issues in his area of expertise while providing him with the opportunity to explore other sectors: 'the more you engage the more you will learn, exposing you to new areas of engineering that may lead to a change in "the way we do things" or even in career direction; it also broadens your engineering network, which will stand to you for the rest of your career whatever direction you take'.

A new approach enables architects to use discarded tree forks as load-bearing joints in their structures.

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.

My new research reveals that even the best aspects of the UK’s current building plans don’t go nearly far enough, writes Ljubomir Jankovic. We have found that due to embodied carbon emissions – the emissions that derive from making building materials and constructing houses, rather than heating and powering them – only building all new housing using naturally grown materials with negative embodied carbon will allow the UK housing industry to be net zero by 2050.

John Loudon McAdam was a pioneering Scottish engineer who almost single-handedly changed the way roads were built around the world. His innovative shallow camber, crushed, compacted stone layered roads would become the standard for road building throughout the world.