Highway Network Importance Indices

Symmetry and range limits in importance indices

Recently, Mingo has analyzed the properties of I imp, an importance index, and demonstrated that its range is not symmetrical. While agreeing with this comment, we believe that more light needs to be shed on the issue of symmetry in relation to such indices. Importance indices are calculated using three values: performance of the organism in the absence and in the presence of neighbors and maxi...

Early Improving Recurrent Elastic Highway Network

To model time-varying nonlinear temporal dynamics in sequential data, a recurrent network capable of varying and adjusting the recurrence depth between input intervals is examined. The recurrence depth is extended by several intermediate hidden state units, and the weight parameters involved in determining these units are dynamically calculated. The motivation behind the paper lies on overcomin...

Valuing Incremental Highway Capacity in a Network

The importance of increments to an existing highway system depends upon the values they add to the pre-existing network. Over 50 years ago, Mohring [1965] suggested this logic for planning optimal highway investment programs. Moreover he argued it could be implemented by measuring the quasi-rents generated by specific additions to an existing roadway system. To our knowledge no one has managed ...

Highway Engineering Highway Engineering

The importance of normalisation in the construction of deprivation indices.

STUDY OBJECTIVES Measuring socio-economic deprivation is a major challenge usually addressed through the use of composite indices. This paper aims to clarify the technical details regarding composite index construction. The distribution of some variables, for example unemployment, varies over time, and these variations must be considered when composite indices are periodically re-evaluated. The...