GEOG 379 Lecture Notes - Lecture 12: Arcgis, Arcmap, Vehicle Routing Problem

• School: University of Illinois
• Department: Geography
• Course: GEOG 379
• Professor: M Kashem

Document Summary

Network analysis: u(cid:374)dersta(cid:374)di(cid:374)g (cid:862)(cid:374)ear(cid:374)ess(cid:863) w/ a road (cid:894)or other(cid:895) (cid:374)etwork i(cid:374) (cid:373)i(cid:374)d. What is a network: set of connected lines, can be used to represent flow of traffic, water, or any other entity, gis networks are widely used for two kinds of modeling , transportation network, utility network. Transportation network: few constraints on travel, flow can be in both directions, enter network at most any point, exit network at most any point, get anywhere from anywhere. Utility network: highly directional, entry to network is specified, exit points are established, ca(cid:374)"t get to (cid:272)ertai(cid:374) pla(cid:272)es. Modeling/ solving netwroks: arcgis can model both transportation + utility network, transportation network is modeled using network dataset, utility network is modeled using geometric dataset. Network analyst in arcgis: arcmap extension that allows for analysis of distance + cost over a network, primarily for transportation networks (cid:862)e(cid:374)a(cid:271)le(cid:863) network a(cid:374)al(cid:455)st e(cid:454)te(cid:374)sio(cid:374) (cid:271)efore usi(cid:374)g it.