David Simmonds


David Simmonds is an internationally recognized specialist in analysis and modelling of the interactions between land-use transport and the economy, with over 30 years’ experience in this field. He established David Simmonds Consultancy (DSC) in 1990, and has led its growth to the present position where it is the leading practice in its particular field. He has also served as a Director of Marcial Echenique & Partners Ltd (ME&P) and of Hague Consulting Group UK (now part of Rand Europe).

At ME&P in the 1980s he was responsible for a wide range of studies using the MEPLAN package. He initiated the development of the DELTA package in 1995, and has been responsible for many enhancements and much of its application since then, in the UK and abroad, with a particular focus on the convergence of land-use/transport and economic modelling and the development of associated appraisal methods. His major projects in the last few years having included the development of land-use/economic models of France for the Société du Grand Paris and of Great Britain for Highways England, and the development of a new approach to combined land-use/transport appraisal for Transport for London, first applied to the Crossrail2 proposals. He is a regular contributor to professional conferences and to professional/academic journals, and an Honorary Professor at Heriot-Watt University, Edinburgh.

Andy Dobson


Andy Dobson retired from active involvement in DSC project work and management at the end of September 2020. He is continuing as a non-executive director of the company for the time being.

Richard Potter

Associate Consultant

Richard Potter has been an Associate with DSC since 2012. He studied Geography at the University of Southampton and Town and Country Planning at the University of Newcastle upon Tyne. He has worked in Town Planning, research and intelligence, and policy in Local Authorities in England, Scotland and Wales. He was seconded to the Office for National Statistics to help set up Neighbourhood Statistics. He also worked for the Government Office for the East of England as Head of Analysis, improving its analytical capability to become the highest rated Government Office. In 2011 Richard set up Analytics Cambridge and has worked with DSC on the Summertime/Double Summertime and the HS2 projects.

Tom Simpson

Managing Consultant

Tom is a specialist in land-use transport planning, having worked in the field since his graduation. His experience at DSC has covered a number of topics including wider economic appraisal, simulation of transport interventions and extensive analysis of the complex patterns resulting from land-use and transport interaction. Tom has worked on the whole range of the company’s modelling work, including data collection and preparation, running of land-use and transport models, analysis and understanding of results, preparation of GIS based outputs, formal reporting and presentation of results to clients as well as training clients to use DELTA software.  He is currently managing major projects in London, Hampshire and the West Midlands.

Mélanie Bosredon

Managing Consultant

Mélanie joined David Simmonds Consultancy in October 2005 after completing her Master’s studies in GIS and Remote Sensing at the University of Cambridge. She focused her M.Phil research on Transportation issues and undertook her final dissertation on Accessibility Modelling. Prior to joining DSC, Mélanie worked on various GIS-based projects related to diverse domains, including industrial risk assessment and agricultural management. At DSC she was initially involved in the programming of the DELTA package; she has since worked on a wide range of DELTA-based projects, as well as providing specialist GIS contributions across the firm’s work. She was responsible for the coordination of the TELMoS project in Scotland from 2008 to 2010, and is currently managing the development of a national land-use/transport interaction model of France for the Société du Grand Paris. In parallel, she is completing her PhD dissertation at the Centre for Advanced Spatial Analysis, University College London.

Emma Revill

Managing Consultant

Emma is an economist specialising in land-use/tranport planning, modelling and economic appraisal. She has substantial experience in developing new applications of DELTA and in running DELTA models to appraise land use and transport schemes. For Leicestershire County Council, Emma undertook original research using the LLITM Household Survey to inform the calibration of the land-use model. This involved estimating binary logit models for the probability of a household intending to move and multinomial logit models for a moving household’s choice of location. More recently she has taken a leading role in the application of the FLUTE model for the Sheffield City Region. She has also worked on the Auckland model of DELTA since the rejoined the firm in 2006, and is currently managing the development of a new component to model land development taking account of competition from different types of floorspace.

Valentina Nacar

Principal Consultant

Valentina is a consultant with expertise in land use planning, modelling and economic appraisal. She has been developing her technical skills in the field since she first joined DSC in 2010. Her role at DSC consists of a wide range of tasks including: model development; enhancement and calibration of DELTA land-use transport models; collection, manipulation and processing of data for the database creation; setting up and running tests for the appraisal of transport and land-use schemes and; analysis and interpretation of the results including with the help of GIS tools and SPSS. She is also contributing to the developments and enhancements of new features for the DELTA software. In addition, Valentina has experience in liaising with other consultants and interacting with clients.

Mingfei Ma

Senior Consultant

Mingfei has degrees in Architecture and Environmental Design, and a PhD from the Department of Architecture, University of Cambridge. In her PhD project, she used urban land use and transport interaction (LUTI) models to assess the impacts of urban greenbelts on local businesses, residents and their travel behaviours. Her modelling skills lie in establishing, calibrating and validating LUTI models, and using them for policy tests. She also has experience in handling large amounts of data and establishing links among datasets. She has worked as a research associate in the Martin Centre for Architecture and Urban Studies in the University of Cambridge, where she used urban analytical models to assess policy appraisals for the Greater Cambridge and Greater Peterborough Enterprise Partnership.

Alistair Halls

Senior Consultant

Alistair joined DSC as an Analyst in 2016, after completing a degree in Geography at King’s College London. He was promoted to Senior Consultant in 2020. In his time at DSC, Alistair has acquired extensive knowledge of the processes driving land-use and transport planning. He is an expert in the application of the DELTA package, and has provided training in its use to multiple clients. On top of this, he is skilled in the use of VBA and Python, which he has utilised to build tools and programs for DSC and client use.

Charlotte Schnoebelen

Senior Analyst

Charlotte is an engineer with a background in Urban and Territorial Planning. She joined David Simmonds Consultancy in 2018 after having worked in the development and design of land use in Germany. In 2017, she obtained an engineering degree (MSc) Master of Science in Urban and Territorial Planning from the Ecole Polytechnique de l’Université François Rabelais.

Daniel Lee Savage

Senior Analyst

Daniel joined DSC in October 2018 as an Analyst. He studied MSc International Economics and BSc Economics, both at the University of Essex. His MSc dissertation looked at the private and social rates of return to education in Singapore, calculated using a cost-benefit method. Daniel’s undergraduate dissertation focussed on finding the main determinants of economic growth in the Singapore economy over the past 50 years. He used a bespoke panel dataset including various economic, social and political data for around 40 different countries across the past five decades. Fixed effects and random effects regressions were used to quantify the main factors of growth across the 40 countries studied, before further analysis on Singapore in particular.

Stanimira Georgieva

Senior Analyst

Stanimira’s original qualifications were in psychology and neuroscience, in which fields she gained experience in experimental design, data collection and analysis, statistical forecasting, modelling and presentation. Since joining DSC, she has worked in particular on implementation of integrated land-use/transport appraisal (originally known as LUTEE, now ULTrA) in connection with Transport for London’s land-use/transport interaction model, LonLUTI, and on the development of a land-use/economic model of France, as well as assisting with work for HS2 Ltd and the Welsh Government.

Simon Sutcliffe


Simon Sutcliffe joined DSC in 2001 having completed his A-levels in Maths, Physics and Computing at the Lawrence Sheriff School in Rugby, Warwickshire. Simon joined as Technical Assistant to oversee the network of computers and to program DELTA. He organised the networking infrastructure for two office moves and has programmed DELTA since starting in 2001. In July 2005 Simon was promoted to Programmer. He has worked extensively on the whole DELTA model, including the creation of graphical interfaces to the tabulation and initial test setup. On non-DELTA matters Simon has created a user-editable Knowledge base, a file exchange facility and an electronic DELTA Change control system to enhance the transfer of information within DSC. Simon currently resides in Auckland, New Zealand, working remotely on DELTA and other programming tasks.