Your SlideShare is downloading. ×
0
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Network Analysis in ArcGIS
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Network Analysis in ArcGIS

9,563

Published on

Published in: Education
0 Comments
5 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
9,563
On Slideshare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
302
Comments
0
Likes
5
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide
  • Simple routing, one vehicle, multiple stops
  • Simple routing, multi-modal (subway & pedestrian networks)
  • Advanced routing using ArcLogistics – Multiple vehicles, multiple routes, real-time altering of network, temporal based routing, etc.
  • Service area routing – Maintenance calls are routed to the closest facility
  • Transit Service Area – Multimodal network showing distance from central office
  • Transcript

    • 1. Network Analysis
    • 2. Overview
      • GIS deals with the interrelated nature of geographic data
      • Some data has specialized rules, parameters and restrictions on interaction
      • Measurements, relationship-testing and analysis must all occur within this framework
    • 3. Overview
      • Network analysis focuses on edge-node topology to represent real-life networks of information
        • Driving directions
        • Multi-modal routing
        • Information networks
        • Electricity, water, sewer, natural gas…
    • 4. Edges and Nodes
      • Series of nodes connected by edges
        • Each edge starts or ends at a node
        • Each node touches at least one edge
        • Nodes have one or more edge connecting them
      • Planar or non-planar networks
        • Bridges, tunnels, etc…
        • Need for topology enforcement
      • GIS needs to know what data is part of the network and what is simply just data
    • 5. OpenStreetMap Routing
      • OSM follows the same rules of edge-node networks.
      • TIGER data from the Census does not differentiate between over/underpasses
      • A procedure for fixing the network connectivity:
        • Remove the shared nodes
        • Without shared nodes, ways cross but don’t intersect.
      • Real world example of this network topology structure.
    • 6. Network Properties
      • In order for our network to function, we need the following:
        • Base data (our edges and nodes)
        • Cost to traverse the network (dist, time, other)
        • Restrictions on travel (one way, no left turns)
        • Temporal information – at a given time:
          • Is there a higher cost to traveling the network?
          • Are there additional restrictions on our use?
    • 7. Network Participation
      • In ArcGIS, feature classes that participate in a network must all reside within a feature dataset
        • Feature datasets are only in geodatabases
      • The GDB stores additional information about the network and its parts
      • Types of network edges, connectivity rules, impedance, etc…
    • 8. Base Network
      • The base network type within ArcGIS is the Geometric Network, enforcing edge-node topology
      • Two other network types are available, the routing network and the utility network.
        • Routing and analysis of multimodal transportation
        • Analysis and management of utilities
    • 9. Routing Network Attributes
      • Cost (friction, impedance)
        • Length of edges
        • Time to travel along edges
        • Financial cost to traverse network
      • Restrictions (barriers, temporary or permanent)
        • One-way Streets, No Left Turn, etc…
        • Height/weight (vehicle class) restrictions
        • Temporal Restrictions (school zones, flooding)
    • 10. Network Uses
      • Once our network is complete, we can perform analysis on our network
        • Shortest Cost Path
        • Network Flow
        • Service Areas
        • Routing
        • Connectivity analysis
        • Health of the network
    • 11.  
    • 12.  
    • 13.  
    • 14.  
    • 15.  
    • 16. Network Interface in ArcGIS
      • Network Analyst is an extension to the ArcGIS Core
      • Extensions must be enabled to use
      • Enabled in both ArcMap and ArcCatalog
    • 17. Network Analysis Toolbar Menu Working Dataset Analysis Panel Create Network Feature Select Network Feature Solve Directions Network Identify Build
    • 18. Network Analysis Panel
      • Creating a new Route, Service Area, etc. from the Network Analysis menu will add it to the Table of Contents
      • The Network Analysis panel provides you additional access to network-derived data

    ×