The Proceedings of 12th International Conference of Archaeological Prospection draws together over 100 papers addressing archaeological prospection techniques, methodologies and case studies from around the world.

This volume presents over 90 papers from the 13th International Conference on Archaeological Prospection 2019, Sligo. Papers address archaeological prospection techniques, methodologies and case studies from 33 countries across Africa, Asia, Australasia, Europe and North America, reflecting current and global trends in archaeological prospection.

Over the last decade, there has been a surge of interest in urbanization and economic development, sparked by the realization that making urban life sustainable is one of the greatest challenges facing us in the 21st century (this is now one of the core sustainable development goals of the United Nations). This has exerted considerable pressure on researchers to come up with more scientific ways of studying urbanism and economic activity over the long run, which has resulted not only in the development of new theoretical frameworks, but also in the collection of vast amounts of data from a range of settings. This has led to the realization that, although there are significant differences between settlements in different settings, there are nonetheless important regularities and commonalities between a diverse group of settlements in range of geographical and historical contexts, including both ancient and modern ones. This suggests that a common feature of settlements is their ability to generate increased social connectivity, greater division of labour and specialization, and enhanced technological invention and innovation, albeit with costs to levels of equality, quality of life, and standards of living, as well as impacts on the environment, which cannot be separated from the emergence of confederations and states and the creation of settlement systems, hierarchies and networks. We believe that this field of enquiry now stands at a critical juncture. Although it is now feasible to talk about many aspects of ancient and modern urbanism with relative confidence, such as the numbers of cities or their sizes, much of the discussion of these themes within historical and archaeological circles has been on a discursive or qualitative level, while it is often difficult to harmonize the different models that have been applied to date into a consistent empirical and theoretical framework. A new approach to settlements throughout different contexts should now be within our grasp, however, thanks to both the ease with which information can be disseminated and the facilities that recent developments in IT offer us to model, analyse, and statistically test data.

Papers address a major challenge in archaeology: non-intrusive research in pursuit of a deeper understanding of urban areas can be richly informative and cost-effective. Geophysical surveys, UAVs, exposed historic structures and the exhaustive examination of archival records can all play a vital role and their implementation is considered here.

This study presents new evidence for the development of commerce and inter-regional trade through survey and analysis of urban layout and architecture. The study of Roman urbanism – especially its early (Republican) phases – is extensively rooted in the evidence provided by a series of key sites, several of them located in Italy. Some of these Italian towns (e.g. Fregellae, Alba Fucens, Cosa) have received a great deal of scholarly attention in the past and they are routinely referenced as textbook examples, framing much of our understanding of the broad phenomenon of Roman urbanism. However, discussions of these sites tend to fall back on well-established interpretations, with relatively little or no awareness of more recent developments. This is remarkable, since our understanding of these sites has since evolved thanks to new archaeological fieldwork, often characterised by the pursuit of new questions and the application of new approaches. Similarly, new evidence from other sites has since prompted a reconsideration of time-honoured views about the nature, role and long-term trajectory of Roman towns in Italy. Tracing its origins in the Laurence Seminar on Roman Urbanism in Italy: recent discoveries and new directions, which took place at the Faculty of Classics of the University of Cambridge (27–28 May 2022), this volume brings together scholars whose recent work at key sites is contributing to expand, change or challenge our current knowledge and understanding of Roman urbanism in Italy. The individual chapters showcase some of the most recent methods and approaches applied to the study of Roman towns, discussing the broader implications of fresh archaeological discoveries from both well known and less widely known sites, from the Po Plain to Southern Italy, from the Republican to the Late Antique period (and beyond).

This volume is a product of the International Conference of Archaeological Prospection 2017 which was hosted by the School of Archaeological and Forensic Sciences at the University of Bradford. This event marked a return to the location of the inaugural conference of archaeological prospection which was held in Bradford in 1995. The conference is held every two years under the banner of the International Society for Archaeological Prospection. The Proceedings of 12th International Conference of Archaeological Prospection draws together over 100 papers addressing archaeological prospection techniques, methodologies and case studies from around the world. Including studies from over 30 countries distributed across Africa, North America, South America, Asia and Europe; the collection of articles covers a diverse range of research backgrounds and situations. At this particular ICAP meeting, specific consideration has been given to emerging techniques and technologies in the fields of inter-tidal and marine archaeological prospection, and low altitude archaeological prospection. The papers within this volume represent the conference themes of: Techniques and new technological developments; Applications and reconstructing landscapes and urban environments; Integration of techniques and inter-disciplinary studies, with focus on visualisation and interpretation; Marine, inter-tidal and wetland prospection techniques and applications; Low altitude prospection techniques and applications; Commercial archaeological prospection in the contemporary world.