| Article ID: | iaor19931874 |
| Country: | United Kingdom |
| Start Page Number: | 433 |
| End Page Number: | 446 |
| Publication Date: | Jul 1992 |
| Journal: | Mathematics In Transport Planning and Control |
| Authors: | Loveday J., Jarrett D. |
| Keywords: | statistics: general |
Maher suggested that spatial autocorrelation between the mean accident frequencies at neighbouring sites may account for the apparent ‘migration’ of road accidents from treated to untreated sites, as observed by Boyle and Wright. In this paper, the data used by Boyle and Wright, together with a new data set from the City of Birmingham, are analysed to measure the extent of spatial autocorrelation present. Theoretical spatial models which can be used to represent road accident data are examined and compared with these data sets.