All mechanical excavation was under the supervision of an attendant archaeologist who was given the opportunity to stop excavation to investigate potential archaeological features/deposits where they arose. As a minimum (i.e. where no archaeology was found) there was an accurate site plan and photographic record. The stratigraphy of the site was recorded even where no archaeological deposits were identified. The site was accurately tied into the National Ordnance Survey Grid and located at a suitable scale. Digital data was surveyed with equipment using Real Time Kinematic (RTK) corrections from a Global Navigation Satellite System (GNSS) network. The same equipment was used to record known points on drawn plans and sections and to take spot heights to supplement other available planning/survey techniques as applicable. Excavation was undertaken by a suitable mechanical excavator fitted with a toothless ditching bucket or by hand. Where excavation required digging through hard standing or tarmac, a breaker was used. No finds, features or deposits of archaeological significance were encountered during the watching brief.
Hunter et al. (Wed,) studied this question.