TY  - JOUR
PY  - 2004//
TI  - Comparison of planar and network K-functions in traffic accident analysis
JO  - Journal of transport geography
A1  - Yamada, Ikuho
A1  - Thill, Jean-Claude
SP  - 149
EP  - 158
VL  - 12
IS  - 2
N2  - The network and planar K-function methods are applied to traffic accident data to illustrate the risk of false positive detection associated with the use of a statistic designed for a planar space to analyze a network-constrained phenomenon. We also demonstrate the benefits of using a method specifically designed for a network space. The results clearly indicate that the planar K-function analysis is problematic since it entails a significant chance of over-detecting clustered patterns. Analyses are implemented based on Monte Carlo simulation and applied to 1997 traffic accident data in the Buffalo, NY area.<p /> 
LA  - 
SN  - 0966-6923
UR  - http://dx.doi.org/10.1016/j.jtrangeo.2003.10.006
ID  - ref1
ER  -