USING GIS TO UPDATE A FIELD SERVICES PRICING MODEL & LEVERAGING GIS TO SUPPORT FIELD DATA COLLECTION AND PUBLIC EDUCATION.

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1 USING GIS TO UPDATE A FIELD SERVICES PRICING MODEL & LEVERAGING GIS TO SUPPORT FIELD DATA COLLECTION AND PUBLIC EDUCATION John May, GISP

2 THE CHALLENGE Since 1992 TxDOT has had to comply with NPDES requirements Map and Inspect Outfalls Along TxDOT Roadways In Urbanized Areas

3 WHAT IS AN OUTFALL? The point of a conveyance at which a discharge enters waters of the U.S.

4 HOW MANY OUTFALLS DOES TXDOT THINK THEY HAVE? 1 stream crossing every 2,000 feet X 4 outfalls per crossing = 10.5 outfalls per mile 79,000 miles of roads X 10.5 = 829,500 outfalls Fortunately only urbanized areas need to be mapped

5 WHERE ARE THE URBANIZED AREAS?

6 FORT WORTH STUDY AREA 212 miles of TxDOT roads within city limits 559 estimated stream crossings 2,236 estimated outfalls

7 FORT WORTH STUDY AREA

8 FORT WORTH STUDY AREA TXDOT ROADS

9 FORT WORTH STUDY AREA CITY LIMITS

10 FORT WORTH STUDY AREA TXDOT ROADS IN FORT WORTH

11 FORT WORTH STUDY AREA FORECAST STREAM CROSSINGS

12 FORT WORTH STUDY AREA FORECAST CROSSINGS & STREAMS

13 FORT WORTH STUDY AREA GIS IDENTIFIED CROSSINGS

14 FORT WORTH STUDY AREA NOT ALL CROSSINGS ARE CROSSINGS

15 FORT WORTH STUDY AREA NOT ALL CROSSINGS HAVE OUTFALLS

16 FORT WORTH STUDY AREA NOT ALL CROSSINGS HAVE OUTFALLS

17 FORT WORTH STUDY AREA OUTFALL LOCATIONS

18 FORT WORTH STUDY AREA FORECAST LOCATIONS

19 FORT WORTH STUDY AREA ACTUAL LOCATIONS

20 RESULTS 559 = Forecast crossings using TxDOT method 158 = Forecast crossings using GIS method 2,236 = Forecast outfalls using TxDOT method 632 = Forecast outfalls using GIS method 155 = Field verified outfalls (60 crossings) 10.5 = Forecast outfalls per mile (TxDOT method) 0.73 = Field verified outfalls per mile TxDOT method over predicts outfalls 14 fold!

21 RESULTS Analysis Zone TxDOT Roadway Miles Forecast outfalls Outfalls identified during field survey Outfalls Per Mile Fort Worth 212 2, El Paso 200 2, Totals 412 4,

22 Leveraging Your GIS Data Field data collection can be tedious Locate the outfall Record an inspection Update a database back in the office Online GIS can streamline the work Web maps can be used for data collection Web maps can be used for reporting Web maps can be used for public education

23 Many Different Online Tools Available Arcgis Online GisCloud GeoCommons Mango Map MapCite Google Fusion Tables CartoDB Google Earth

24 ArcGIS Online

25 ArcGIS Online

26 ArcGIS Online Pros Collaborative/Teams Location Sensors Supports Hyperlinks Private and Public Maps Good Basemap Selections ESRI Product Cons ESRI Product Expensive Certain Features Require Desktop Integration Limited GIS Functionality

27 GIS Cloud

28 GIS Cloud

29 GIS Cloud Pros Collaborative/Teams Location Sensors Supports Hyperlinks Private and Public Maps Data Import/Export Good Basemap Selections True GIS Functionality Cons Complex Interface PostGIS Requirements More a GIS than a Map Server

30 GeoCommons

31 GeoCommons

32 GeoCommons Pros Collaborative/Teams Private and Public Maps Data Import/Export Good Basemap Selections Easy Interface Free Cons Does not support Hyperlinks No Editing Ability No Location Sensors Purhased by ESRI

33 Mango Map

34 Mango Map

35 Mango Map Pros Collaborative/Teams Private and Public Maps Supports Hyperlinks Data Import/Export Good Basemap Selections Easy Interface Free Cons No Editing Ability No Location Sensors

36 MapCite

37 MapCite

38 Mapcite Pros Private and Public Maps Supports Hyperlinks Data Import Good Basemap Selections Easy Interface Cons Data Conversion Errors No Location Sensors No Data Export Expensive Bugs

39 Google Fusion Tables

40 Google Fusion Tables

41 Google Fusion Tables Pros Private and Public Maps Data Import Multiple Table Capabilities Attribute Editing Only Familiar Interface Free Cons Experimental No Hyperlink Support No Location Sensors Cannot Create Data on Map

42 CartoDB

43 CartoDB

44 CartoDB Pros Private and Public Maps Data Import/Export Attribute Editing Only Good Basemap Inexpensive Cons Data Conversion Errors No Location Sensors Cannot Create Data on Map

45 Google Earth

46 Google Earth

47 Google Earth Pros Public Maps Good Basemap Free Cons Data Import Requirements No Location Sensors Cannot Export data Requires Software Only Useful for Viewing

48 QUESTIONS? John May Technology Client Manager