cost estimation system tool...develop initial project cost during lrtp development, for projects...
Post on 14-Apr-2020
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Cost Estimation System Cost Estimation System Tool
MPO ConferenceGDOT Office of Planningg
Planning Level Cost Estimates• Issues
The current funding environment has created a– The current funding environment has created a critical need to ensure accurate and current planning level cost estimatesp g
– Federal / State / Local funding requires accurateFederal / State / Local funding requires accurate estimates to assist with spending prioritization and balancing
Planning Level Cost Estimates• Answers
– Develop Software to better standardize planning level cost estimation.
–Cost Estimation System (CES)– AASHTO software product
– Estimates Construction & PE phasesp
–Right of Way and Utility Relocation CostRight of Way and Utility Relocation Cost Estimate Tool (RUCEST)– Created by GDOT– Created by GDOT
Improving Planning level Estimates‐Items previously not included in planning level estimating
‐ Software cost groups calculate items (asphalt‐ Software cost groups calculate items (asphalt, concrete, earthwork, etc.) known to be in the majority of projects constructed by GDOT.
‐ Software calculates item cost based project location (geographic region of State).
‐ Added contingency captures unknown variables (i.e. concrete walls, culverts, landscaping, lighting, etc.)
‐ User friendly interface allows user to add secondary project items (traffic signals, turn lanes, etc.)
What does CES do for you?• Generates planning level estimates for Construction costs using pre‐made project “templates”using pre made project templates
• Template uses predetermined Cost Groups info to calculate planning level cost estimate based on the p gproject length and the typical section
– Uses GDOT historical data (3 year window) and ( y )updated each quarter
• Provides contingency percentages for unknowns
• Documents all planning level assumptions in an attached text file
The way CES works• Research project description (logical termini, typical section needed)
• Use aerial imagery (Google Maps) to confirm
– Project Length
– Existing section
– Urban/rural
– Proposed improvements
• Primary work type (i.e. widening, new road)
• Secondary work types (i.e. bridges, turn lanes, signals, etc.)
The way CES works (cont.)• Select appropriate template in CES
– Primary Project template (required)y j p ( q )
– Secondary template (add as needed)
• Enter project length and widthnter project length and width
• Enter optional items as appropriate.
– Traffic Signals Turn Lanes Major IntersectionsTraffic Signals, Turn Lanes, Major Intersections.
– Document all assumptions for planners and designers to review your cost assumptions.designers to review your cost assumptions.
Project Type CES Templatesj yp p
•Auxiliary lanes •Passing lanes•Bridges•Frontage roads
•Ramps
•Roadway (new alignment)
•HOV lanes•Median work
•Roundabouts•Sidewalks
•Multi‐use Trail
•Park and Ride Lots•Turn lanes•Widening Projectsg j
CES Templates• Select the appropriate template – save as new project fileSelect the appropriate template save as new project file
CES Main Estimating ScreenEnter Project Description
Location:•Countyy•Urban/Rural•GDOT District
Length & Width
CES Optional ItemsEnter quantity # of various items along project corridorEnter quantity # of various items along project corridor• Left Turn Lanes• Right Turn LanesRight Turn Lanes• Major Intersections• Traffic Signals
RUCEST‐ ROW & Utility Estimating Tool• AASHTO’s CES only calculates CST & PE via %
• RUCEST created to generate and document planning• RUCEST created to generate and document planning level cost estimate for Right of Way (ROW) and Utility Relocation– Uses database of cost items organized by counties (ROW) and DOT District (Utility)
• Creates cost sheet that can be exported to PDF or print for archival purposes
• Catalogs different cost scenarios as snapshots
How RUCEST worksl ( l )• Use aerial imagery (GIS or Google Maps) to estimate
project length, ROW land type, takes, and utility
• For smaller parcels (i e gas stations) found within the• For smaller parcels (i.e. gas stations) found within the corridor, estimate length and subtract from primary land use type.
• Fill in the worksheet to compile and document the information before adding a new Snapshot in RUCEST
• Add attachment files (PDF maps of corridor) as appropriate
Fi li “ h t ” t d i RUCEST• Finalize “snapshots” to save record in RUCEST• Revisit estimates on regular basis as appropriate
Items to enter into RUCEST• Terrain (flat, rolling, mountainous)
• Typical Section (Urban or Rural)Typical Section (Urban or Rural)• Tool provides default ROW width
• County & Land TypeCounty & Land Type • Enter length of each land type
• Tool provides default land value $ cost per acrep $ p
• Enter known displacements (takings)• Tool provides default land value $ cost per acreTool provides default land value $ cost per acre
• Add known and assumed Utilities
• Add attachments (PDFs Study N&P maps etc )• Add attachments (PDFs, Study, N&P, maps, etc.)
Cost Estimation resources: Google
ChurchBridge
Utility Corridor
Use Distance Measurement Tool to measure Length and Width
Google Street Viewg
Potential items to look for
Power Poles
Traffic Signal
signage
Traffic Signal
St D i ( )
Fire Hydrant (water line)
Storm Drain (sewer)
Sample DocumentationText File Attachment
Input project name & description
Text File Attachment
name & description
Input:Input: • Date / Estimator• Project length• Project width • # of lanes
Text File AttachmentSample DocumentationText File Attachment
Roadway Project Width Assumptions:• 48’ feet Travel Lanes (12’ ft per travel lane)
Based on typical section selected
• 48 feet Travel Lanes (12 ft per travel lane) • 13’ feet for paved outside shoulders (13’ ft) • 0’ feet for paved inside shoulders (4’ ft) • 14’ feet for flush median (range 14’ ft)• 0’ feet for bike lanes (8’ ft)
Total width of pavement (s): 75’ feetTotal width of pavement (s): 75 feet
Other Roadway assumptions (not affecting width in CES):• Median Treatment: 14’ Flush (none, flush, raised, grass, depressed) • Sidewalks: No (yes or no)
Text File AttachmentCreate separate pproject for bridges using bridge widening templates (secondary project)(secondary project)
Cost from CES t l t b dtemplate based on length and total width of new bridge less existing widthless existing width
Summary• Use these Planning level cost estimating tools to develop initial project cost during LRTP development, for projects which have not had preliminary engineering (PE) initiated
• Save all documentation in software tools so estimates can be reviewed in the future
• Review the available training materials and documentationdocumentation
• Provide future suggestions
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