Gina Barney is principal of Gina Barney Associates. Through her 50 years of experience in practice, research, and lecturing in vertical transportation and control systems, she has had a profound influence on this field. Her involvement continues with her activities with the BSI Committees on Lifts, Escalators & Moving Walks, the CIBSE Lifts Group Executive Committee and as English Editor of Elevatori (the European lift magazine).

Lutfi Al-Sharif is an Associate Professor at The University of Jordan. He has 30 years of experience in the area of lifts and escalators, including working for a manufacturer (Jordan Lift & Crane), for a client (London Underground), for a consultancy (WSP and Al-Sharif VTC) and in academia (The University of Jordan). He has over 20 papers published in peer-reviewed journals, is co-author of three patents and is a member of the scientific committee of the Lift Symposium held annually at the University of Northampton.

1. Introduction PART A 2. Principles of interior circulation & circulation elements 3. Escalator and moving walk circulation Circulation case studies PART B 4. Principles of classical lift traffic design 5. Evaluating the round trip time equation 6. Determination of passenger demand & an improved design procedure 7. Uppeak traffic calculations: limitations and assumptions 8. Consideration of lift function, building form, building function, uppeak boosters and disadvantage transportation and their effect on the round trip time equation 9. General philosophy of lift traffic design by calculation Traffic case studies PART C 10. Legacy traffic control 11. Computer based traffic control 12. Overview of modern lift group control systems 13. Advanced analysis of uppeak PART D 14. Advanced analysis of down peak 15. Advanced analysis of interfloor traffic 16. Midday traffic PART E 17. Simulation and computer aided design 18. Advanced techniques 19. Traffic surveys 20. Current trends and future developments Appendix