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Chapter 4Ship visitsThis chapter presents information which charts the trends in container ship size overtime for those ships which visit the five ports covered by Waterline (see Appendix Bfor the definition of ship units used).Table 4.1 provides the five port total number of ship visits and the average numberof TEUs exchanged per ship visit for container vessels with sizes ranging from5 000–60 000 GT.Average TEUs rose in 2007 throughout almost all ship sizes in 2007. Most of the riseswere in the second half of 2007. They rose most steeply in the 25 000–30 000 GT andthe 55 000–60 000 GT ranges.Total ship visits increased by 2.0 per cent in calendar year 2007 compared with thepreceding year, with ship visits peaking at 2207 for the six months to December 2007.There was little variation in ship visits between the six month periods to June 2007and December 2007. The largest increases were in the 25 000–30 000 GT range and30 000–35 000 GT range where there were increases of 60 and 58 visits respectively.On a five port basis Table 4.2 shows the distribution of ship visits by vessel grosstonnage. The median for Sydney and Melbourne was in the 20 000–25 000 GT range.For Adelaide it was in the 50 000–55 000 GT range and for Fremantle in the 30 000–35 000GT and for Brisbane in the 5 000–10 000 GT range.For Sydney, the 75th percentile ship visit occurred in the 25 000–30 000 GT range, forBrisbane in the 15 000–20 000 GT range, for Melbourne in the 30 000–35 000 GT range,for Adelaide in the 40 000–45 000 GT range and for Fremantle also in the 40 000–45 000GT range.37