TY  - JOUR
PY  - 2011//
TI  - Hierarchical system of road networks with inward, outward, and through traffic
JO  - Journal of transport geography
A1  - Miyagawa, Masashi
SP  - 591
EP  - 595
VL  - 19
IS  - 4
N2  - This paper formulates a continuous model of a grid road network for determining the optimal hierarchical system of road networks. The hierarchical system is represented as the proportions of area taken up by roads at each level of the hierarchy. The objective is to derive the optimal ratio of road areas that minimizes the total travel time. The model explicitly incorporates inward, outward, and through traffic as well as inner traffic to examine how traffic composition affects the optimal ratio of road areas. The result reveals that the optimal ratio of major arterial roads increases with inward, outward and through traffic.<p /> 
LA  - 
SN  - 0966-6923
UR  - http://dx.doi.org/10.1016/j.jtrangeo.2010.06.013
ID  - ref1
ER  -