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West Rail vs. Bus - Lingnan University Library

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The first limitation is the sample size. Because of the limit in time and manpower, this<br />

study has only 122 completed questionnaires. The sample size may be too small to<br />

find some significant results. Also the sample size of bus passengers and <strong>West</strong> <strong>Rail</strong><br />

passengers is not evenly distributed. It has 77 questionnaires from bus passengers, but<br />

only 45 questionnaires from <strong>West</strong> <strong>Rail</strong> passengers. The number of <strong>West</strong> <strong>Rail</strong><br />

passengers’ questionnaires may be too few to generate useful and significant<br />

information for KCRC.<br />

Second is the data collection method. Most of the questionnaires are<br />

collected at particular bus stops, <strong>West</strong> <strong>Rail</strong> stations and inside the <strong>West</strong> <strong>Rail</strong> trains.<br />

One cannot stand at every bus stop or every <strong>West</strong> <strong>Rail</strong> stations, so it may create some<br />

bias that some passengers are not reached. Also interviews are only conducted at<br />

non-peak hours when people will have more time to answer the questionnaires. The<br />

travelers of peak hours never have a chance to be interviewed.<br />

Third is the sampling frame. We only interviewed bus and <strong>West</strong> <strong>Rail</strong><br />

passengers who lived in <strong>West</strong> New Territories. This research does not cover those<br />

passengers who are not traveling by bus or <strong>West</strong> <strong>Rail</strong>, but choose minibus and taxi.<br />

Their opinions for <strong>West</strong> <strong>Rail</strong> may be important. The opinions of passengers who are<br />

not live in <strong>West</strong> New Territories are also not included.<br />

74

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