The development of suburban infrastructure depends on political, technical and financial priorities. A train derailment in an Italian suburb has highlighted the need to retrofit infrastructure.
How do you prevent urban sprawl? Researchers look to a program in New Mexico for an answer.
Suburban areas feel infrastructure stress most acutely. Having to deal with severe inadequacies, suburbs offer fertile ground for infrastructure experimentation and innovation.
Scotland's new deprivation figures confirm a wider trend towards suburbanising poverty.