About Assessing the Underworld
Assessing the Underworld (ATU) is an ambitious 10-year research programme largely funded by the EPSRC.
The problems associated with inaccurate location of buried pipes and cables are serious and are rapidly worsening due to increasing traffic congestion in major urban areas – unnecessary lengthening of utility street works simply exacerbates this congestion, quite apart from increasing other associated costs of poor location – while the problems associated with an ageing and deteriorating buried utility infrastructure are widely recognised.
Mapping the Underworld (MTU) started in 2004 with four complementary research projects covering the feasibility of a multi-sensor location tool; mapping and positioning in urban canyons (where access to satellites is compromised); data integration to yield a single repository for records; and RFID tags to assist future pipe location. The second stage of the MTU programme built directly on the findings of the MTU Phase 1 feasibility study via a £3.5 million EPSRC-funded project that sought to develop a multi-sensor device using ground penetrating radar (GPR), acoustics and electromagnetic technologies to locate all infrastructure in all ground conditions without the need for probing excavations. This new programme, which started in 2008 and finished in 2013, was a multi-disciplinary and multi-university research project bringing together experienced researchers with a range of different expertise. The project concluded that only the combination of the different technologies will allow for reliable detection of the buried assets, and moreover such an approach has the potential to be used for condition assessment of the buried utility infrastructure, as well as the surface transport infrastructures beneath which it sits and the geotechnical infrastructure (or ground) which supports them both. Accordingly a new major multi-disciplinary, multi-university research project – Assessing the Underworld (ATU) – was proposed and secured funding of £5.9 million. The new project started in 2013.
ATU’s Project Aims
The project aims to create prototype multi-sensor devices, and undertake fundamental enabling research, to enable the condition assessment of the three interdependent infrastructures associated with street works – buried utility service pipelines and cables, road and pedestrian pavement structures, and the ground – by combining novel geophysical approaches deployed both from the ground surface and from a robotic device that can be deployed in a pipeline (e.g. a water distribution pipeline). The results of this work will combine with records of the three infrastructures and sustainability assessment methods in a decision support system that will inform engineers and other stakeholders on the most effective approaches to be adopted when engineering in, and beneath, our streets.