4D Hyperlocal: A Cultural Tool Kit for the Open-source City The evolution of digital tools is revolutionising urban design, planning and community engagement. This is enabling a new ‘hyperlocal’ mode of design made possible by geolocation technologies and GPS-enabled mobile devices that support connectivity through open-source applications. Real-time analysis of environments and individuals’ input and feedback bring a new immediacy and responsiveness. Established linear design methods are being...