Volume 11, Number 1, March 2019 Join SIGSPATIAL NOW   Foreword i-ii Message from the EditorAndreas Züfle  1 Section 1: Special Issue on Spatial Query Processing and Traffic Simulation Introduction to this Special Issue Andreas Züfle 2 Spatial Pattern Matching: A New Direction for Finding Spatial Objects Yun Li, Yixiang Fang, Reynold Cheng, Wenjie Zhang 3-12 Spatial […]