CIBSE GUIDE D-2016 第三章.pdf

3 Traffic planning and selection of lift equipment and performance Principal author Dr Gina Barney (Gina Barney Associates) Chapter contents 3.1 Introduction 3-1 3.2 Symbols 3-2 3.3 Definitions 3-2 3.4 Traffic patterns 3-3 3.5 Sizing an existing lift installation 3-4 3.5.1 The round trip time (RTT) equation 3-4 3.5.2 Evaluating up-peak interval, up-peak handling capacity and 3-4 percentage population served 3.5.3 Values for highest reversal floor (H) and average number of 3-4 stops (S) 3.5.4 Value for number of floors (N) 3-4 3.5.5 Value for average number of passengers (P) 3-4 3.5.6 Value for floor transit time (tv) 3-5 3.5.7 Value for rated speed (v) 3-5 3.5.8 Value for performance time (T) 3-5 3.5.9 Value for single floor flight time (tf (1)) 3-6 3.5.10 Value for start delay (tsd) 3-6 3.5.11 Values for door closing (t ) and door opening (t ) times 3-6 c o 3.5.12 Val