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6. Safety and security on the transport networks<br />

Figure 6.3<br />

Vulnerable road user KSI risk by borough and by time period, with 90 per<br />

cent confidence <strong>in</strong>tervals, controll<strong>in</strong>g for changes <strong>in</strong> mode share.<br />

Source: TfL Surface Transport - Strategy & Outcome Plann<strong>in</strong>g.<br />

Risk to vulnerable road users by <strong>London</strong> borough over time<br />

Risk can be monitored over time, and each borough has had two consecutive fouryear<br />

period casualty rates calculated. This <strong>in</strong>formation is plotted <strong>in</strong> figure 6.3 us<strong>in</strong>g<br />

horizontal bars represent<strong>in</strong>g statistical confidence <strong>in</strong>tervals. The more data that is<br />

available, the more confident we can be with the estimation of risk, and the shorter<br />

113 <strong>Travel</strong> <strong>in</strong> <strong>London</strong>, Report 8

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