BP Routing Collaboration Tool. Components — The application consists of three major components: Web Environment for user access/security, viewing existing project data and simulations, generating new simulations, storage of results and database maintenance.
Goal — The BP Routing Collaboration tool is a web-based .NET application consisting of server-based GIS and modeling components that identify the least cost path optimization for pipeline routing and integrate procedures for Hydraulic, Cost and Economic evaluation of alternative routes. Primarily for Pre-Appraise, Appraise, & Select (Design, Construct & Operate).
Progress report 2004
R, H, C, E Models
Global Map Level
Regional Map Level
Can’t go there…
Land Cover (1)
Sensitive Areas (7)
Land Use (1)
Ground Type (6)
Major Crossings (5)
Terrain Slope (8)
Construction Period (7)
Restoration Costs (3)
Regional Security (8)
Third party (5)
Construction Hazards (1)
Population Density (9)
Population Proximity (4)
Environmental HCA (9)
HCA Proximity (1)
Step 1 generating the Discrete Cost
Surface is the most critical step
Hazards to Avoid
Upon logging-in, users are presented with a listing of existing projects they are authorized to view. Selecting a project enables them to interact with existing project simulations they or others have created, or generate new project simulations to identify new alternative routes or to specify different evaluation model assumptions.
Using the Global database, the user selects a new Project Area, identifies beginning/end points…
…and criteria layers and weights to be used (only terrain slope in this example)
Discrete Cost Surface
Discrete Cost Surface(slope)
1) Enter route simulation name and comments
2) Identify criteria layers and weights to be used for the simulation
3) Identify Begin and End points that will define the route
…the simulation parameters are written to a queue to be processed as hardware and software resources come available (about 3 to 5 minutes for a “typical” routing simulation)
The simulation is queued for processing then displayed as the Optimal Route (blue line) and 1% Optimal Corridor (cross-hatched)
Hydraulic Model Input
Soil/Slope Terrain factor
…based on planimetric distance such that segments are all the same length
Hydraulic Input Table
…based on elevation profile such that segments are dependent on terrain inflection points
Natural gas tool recommends optimal combination of pipe diameter, MAOP, & compressor station size/spacing to deliver the most cost effective solution.
Liquid tool calculates optimum combinations of pipe diameter, design pressure, pumping requirements, & pressure reduction stations to find the solution for minimum cost.
Cost Input Table
Cost Model Input
Design Factor, Land Use, Ground Water, Geo-hazards, etc.
A & B
…intersecting the route with the “universal conditions” map divides the route into segments having constant conditions throughout their lengths.
Tool estimates material, construction, & overhead costs for onshore pipelines & associated facilities
The basis of the tool is a calculation algorithm which uses cost factors (or cost increments) based upon the inputs
Factored cost elements are then re-compiled into an overall cost estimate – which reflects the combined impact of the input pipeline characteristics
& Location Data
Line Pipe Material
& Wall Thickness Data
The Economic Model is used to calculate project economic parameters to assess the commercial viability of the project. Output parameters include NPV, IRR, & Tariff.
(1) User Environment– login and select project (User, Projects, Data and Model Administer access)
(2) Project Simulations– view previous results and enter specification for new simulations
(3) Databases– application automatically accesses appropriate parameters and spatial data
(4) Routing Criteria– map layers at the appropriate analysis level are weighted
(5) Routing Model– routing model derives the optimal route and corridor
(6) Route Segmentation– proposed route is divided into segments for calculating Hydraulic and Cost model input parameters
(7) Hydraulic Model– route is segmented, GIS data derived, user input specified then results generated
(8) Cost Model– route is segmented, GIS data derived, Hydraulic Model results and user input specified input then results generated
(9) Economic Model– Cost Model results and user input specified then results generated
Electric Transmission Line
Oil & Gas Pipeline
Both the GTC and the BP applications utilize well established Routing and Optimal Path techniques to determine the best route for a linear feature…
…the GTC application is unique in how it directly involves stakeholders in the calibration and weighting map criteria layers and establishes a procedure that is objective, quantitative, predictable, consistent, and defensible(social emphasis)
…the BP application is unique in how it directly involves stakeholders in the simulation of potential routes within a web environment and the full integration of GIS and Excel decision support models
…so what is the take-home for GIS students and professionals?