The Geography Department at San Diego State University, in collaboration with the Sage Project and the City of Lemon Grove, produced an inventory of stop sign and street identification sign locations within the city limits of Lemon Grove. Two teams collected stop sign coordinates with ESRI’s Collector for ArcMap and street sign coordinates with Google’s My Maps. Maps were then created from these two information layers. The purpose of this geographic information system (GIS) was to aid the city i...