Decreasing Travel Time for Freeway Users

by Richard Henry Haase

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An investigation of possible methods of increasing the use of freeways. The criterion used is that of minimizing travel time rather than maximizing flow. An idealized model of a typical freeway trip shows that travel time may be reduced by maintaining the density of cars below a critical level. This can be accomplished by restricting the flow of cars onto the freeway and by maintaining off-ramp capacity in excess of on-ramp capacity. Suggestions are included for possible technical developments that may increase freeway utility.

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