The objectives of the time study were: (1) to quantify the dump-trip time of municipal solid waste MSW
collection using haul-container system (HCS), as upgrade collection technology, and tipper lorries, previously
identified as ineffective, in waste collection in urban route zones of Uyo metropolis; and to evaluate and
compare the solid wastes collection efficiencies of both service vehicular technologies to justify selecting
upgrade technology of HCS. Time-study survey was effected with 4 HCS trucks and three tipper carriers in 4
out of 6 route zones in Uyo metropolis using snap-back stop watch timing of all on-the-job collection activities
and non-job related [loss time] activities. Data were statistically analyzed and inferences made from ANOVA
significant differences, coefficient of variance using SPSS version 17 windows. Dump trip time (tnet) varied
between vehicles and route zones with HCS performing faster and more efficient than tipper lorries in all route
zones. Dump trip time varied for between 17 and 27 mins maximum, HCS haulers and between 49 and 59 min
maximum for tipper lories, and gave maximum tnet ratio of 1 (HCS) : 3.5 (tipper). Average collection
efficiencies were 61 – 76% (for HCS pickups) and 59% for tippers. The tipper vehicle consumed longer hours
(2.5 – 3.5 times the dump trip time of HCS hauler) to complete about the same waste load collection as the HCS
haulers.