Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/221814
Title: AIR QUALITY IN THE NUS INTERNAL SHUTTLE BUS
Authors: LAM YEONG JING
Keywords: Building
PFM
Project and Facilities Management
Cheong Kok Wai David
2014/2015 PFM
Air quality
Bus
NUS internal shuttle bus
Issue Date: 23-Jun-2015
Citation: LAM YEONG JING (2015-06-23). AIR QUALITY IN THE NUS INTERNAL SHUTTLE BUS. ScholarBank@NUS Repository.
Abstract: In NUS, the internal shuttle service is the main mode of transport that brings 50,000 commuters to the various destinations in or around the campus. Poor in-bus indoor air quality (IAQ) is likely to impact the health of not only the bus drivers, who are exposed to the poor IAQ for a long period of time, but also the large number of commuters who utilize the internal shuttle service. The objective of this study is to measure the IAQ and thermal comfort parameters on randomly selected NUS shuttlebuses and to compare the results based on the periods (Peak and Off-peak) and bus types (New and Old). Two hypotheses are established. H1 states that the IAQ on the shuttlebuses is worse in peak periods than in off-peak periods while H2 states that the IAQ in the New bus will be better than the Old bus. Objective and subjective assessments are carried out to investigate the IAQ in the buses. The objective assessment includes the physical measurement of selected chemical and thermal comfort parameters recommended in SS554:2009, while the subjective assessment includes interviews with bus drivers and a survey conducted on commuters. The results showed that the off-peak periods performed better than the peak period, in terms of both thermal comfort and IAQ, proving that that H1 is valid. On the other hand, H2 is proven to be invalid as the results illustrated that both the IAQ and thermal comfort is better in the Old bus.
URI: https://scholarbank.nus.edu.sg/handle/10635/221814
Appears in Collections:Bachelor's Theses

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