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Home Economic evaluation manual 2007- Volume 1, Amendment 1 (road infrastructure) Appendix 3 - Travel time estimation procedures A3.2 - The stages for estimating travel time

References

  • Planning, programming and funding
  • Economic evaluation
  • Procurement

A3.2 - The stages for estimating travel time

  • A3.1 - Travel time estimation procedures
  • A3.2 - The stages for estimating travel time
  • A3.3 - Determining traffic volumes
  • A3.4 - Calculating free speed travel time
  • A3.5 - Determining the free speed of multilane roads
  • A3.6 - Determining the free speed of two-lane rural roads
  • A3.7 - Determining the free speed of other urban roads
  • A3.8 - Determining the capacity of road sections
  • A3.9 - Determining the capacity of motorways
  • A3.10 - Determining the capacity of multilane roads
  • A3.11- Determining the capacity of two-lane rural roads
  • A3.12 - Determining whether vehicle interactions are significant
  • A3.13 - Types of delay
  • A3.14 - Average peak interval traffic intensity
  • A3.15 - Determining the peak interval
  • A3.16 - Calculating the average peak interval traffic intensity
  • A3.17 - Calculating the volume to capacity ratio
  • A3.18 - Calculating the additional travel time
  • A3.19 - Calculating bottleneck delay
  • A3.20 - Determining whether to consider peak spreading
  • A3.21 - Determining the additional travel time resulting from speed change cycles
  • A3.22 - Calculating the time period total average travel time
  • A3.23 - Traffic signals
  • A3.24 - Priority intersections
  • A3.25 - Roundabouts
  • A3.26 - References

A3.2 - The stages for estimating travel time

Flowchart for estimating travel time

The flow chart below shows the basic stages for estimating road section travel time (the stages are slightly different for intersections).

EEM1 - Appendix A3.2 Flowchart for estimating travel time

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