information, a technique associated with so-called neogeography. This paper, based on the data from China's OpenStreetMap road … network in May 2014, taking 340 prefecture-level cities in China as its study area, presents the geometric-related (road … density) and attribute-related (type diversity) spatial patterns of the OpenStreetMap road network, and explores their …

road networks can be optimized within different constraints like time, distance, cost and traffic running on the roads …. This study is based on optimization of real road network by means of distances. Two main objectives are pursued in this … research: 1) road distances among different routes are composed in detail; 2) two standard algorithms (Dijkstra and Floyd …