| Journey Times Traffic speed graphs can be used using the links in the right hand side of this page The graphs depict average and slowest vehicle speeds for inside the Tunnel in either direction as well as those for the A19 approach at both the north and South sides of the Tunnel. The periods shown in the graph are explained in the table below. | Time of Day | From | To | | Morning Peak period | 0700 hours | 0930 hours | | Inter Peak period | 0930 hours | 1600 hours | | Afternoon Peak period | 1600 hours | 1830 hours | All data figures obtained at the last traffic census
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