It has been argued that gravity models are the most popular mathematical description of human interaction (Sheppard, 1984). In relation to housing prices, gravity based accessibility measures have been suggested as a generalization of modern polycentric labour market structures (Heikkila et al....

A variety of methods have been developed which allow the estimation of benefits likely to arise from new transport infrastructure. In this paper, we concentrate on measuring commuting-related benefits. We compare and contrast two different approaches. The first relies on using data on commuting...

It is well known that measures of labour market accessibility explain spatial variation in housing prices, even in markets with polycentric labour market structures. This paper examines whether data on observed commuting patterns can replace or supplement gravity-based measures representing the...

In many cases fjords cause disconnections in the road network, calling for the service of ferries. The construction of bridges or subsea tunnels may, however, substitute the ferries, often financed by toll charges. In this paper we use data on commuting flows from a Norwegian region with a high...

In this paper we propose a modified gravity model that takes into account that a population generally consists of heterogeneous groups, and we suggest a new statistical test for heterogeneity. We apply our new model to two real world data sets, and it turns out that this new model fits the data...

In western Norway, fjords cause disconnections in the road network, necessitating the use of ferries. In several cases, ferries have been replaced by roads, often part-financed by tolls. We use data on commuting from a region with a high number of ferries, tunnels and bridges. Using a...

This paper studies whether gravity model parameters estimated in one geographic area can give reasonable predictions of commuting ows in another. To do this, three sets of parameters are estimated for geographically proximate yet separate regions in south-west Norway. All possible combinations...

Maximum entropy methods are used to infer the true trip-distribution matrix in cases where parts of the data are suppressed due to privacy concerns. Large proportions of the suppressed data are found to be inferred correctly when the marginal totals in the trip distribution are known....