On-Going NCHRP Construction Research

Transcription

1 1 On-Going NCHRP Construction Research Doug Gransberg, PhD, PE AASHTO Subcommittee on Construction August , All rights reserved, Douglas D. Gransberg

2 Active NCHRP Projects 2 NCHRP Title PI Status AASHTO Partnering Handbook, 2 nd ed. Gransberg ISU 2 nd year Geotechnical Risk Management Guide for DB Projects Contracting Strategies Guidebook for Administration of Concurrent Regional Emergencies Post-Award Contract Administration for Alternative Contracting Methods (373) Utility Coordination Using Alternative Contracting Gransberg ISU 2 nd year?? Pending Molenaar - CU Gransberg - ISU 1 st year 1 st year AD/AB Pavement Type Gransberg - ISU Complete Optimizing Program Delivery Methods Tran U Kansas Complete Practices for Establishing Contract Completion Dates Sturgill -UKY On-going

3 3 Construction Research Past Means Methods Materials Quality Control - Oriented

4 4 Construction Research - Present Alternative project delivery Risk management Collaboration Integration Process- Oriented

5 5 Construction Research Future Institutionalize collaborative business practices Visualize construction in virtual space Use private financing Artificial neural networks Exploit data Information-Oriented

6 6 Exploit and Leverage Data What information is needed? How can information add value in real-time? How do we do more work with the current amount of resources? THE RESEARCH COMMUNITY NEEDS DIRECTION FROM YOU!

7 7 Snapshot of Things to Come Dr. David Jeong - ISU

8 Research Needs 8

9 9 Data Information - Decision Decision Planning Phase Design Phase Bidding Phase Construction Phase Operation Phase DM A DM B... DM N Legend : Active Path Inactive Path Non-Existing Path Information I 11 I I 1N I 21 I 22 I 2n I m1 I m2 I m3.. I mn Data D 11 D 12 D 13 D 14.. D 1n D 21 D 22 D 23.. D 2n D m1 D m2 D m3.. D mn DATABASE I DATABASE II. DATABASE N

10 10 Potential applications Unit Price Space Maps Automated As-built Schedule Development Process Map / Exchange Requirement Matrix

11 Pattern, And Stat Deep Data Analytics of Unit Price Data Analysis 11 Geoprocessing Spatial Interpolation Map Conversion Shapefiles Cleaning Table Text Processed Data Data Selection Spatial Data Iowa DOT Bid Data Bid Tabulation Data GIS Spatial Analysis

12 12 Unit Price Trend Analysis Unit cost over time $4,000 $3,500 Unit cost ($/ton) Linear (Unit cost ($/ton)) $3,000 $/ton $2,500 $2,000 $1,500 $1,000 $500 $- 7/6/20091/22/20108/10/20102/26/20119/14/20114/1/201210/18/20125/6/201311/22/20136/10/201412/27/20147/15/2015 Let date

13 13 Unit Price Trend Analysis Unit cost vs quantity Quantity (ton)

14 Unit Price Space Map 14

15 Deep Data Analytics of Daily Work Report Data Since late 1990s, Digital Daily Work Report (DWR) Systems have been developed and used by State highway agencies General Information Project ID DWR date Work suspension and resume time Presence of contractor Day charging Approval Equipment Euipment name/type/id Number of equipment Hours used Work activities Project ID DWR date Work item Quantities of work performed Location Contractors performing the work Labor Labor type Labor number Labor hours Weather information Low and high temperature, General weather (sunny, cloudy, wind etc.) Rainfall Ground condition (dry, wet, hard to work) Remarks Significant communications with the contractor Significant events Delay cause 15

16 16 As-built Schedules Shows actual sequences and durations of construction activities Takes account of change orders and schedule changes from the originally planned schedule Project level vs activity level as-builts Planning As-planned schedule Categorization By Level Project level Activity level Construction begins By Time Construction As-built to date schedule Time To date Construction completes Final Post construction Final as-built schedule Visualization Bar chart Cumulative quantity chart Uses Project control Delay claims

17 ABSS - prototype 17

18 18 ABSS Activity level ABS Detailed project control Identify dates when productivity was low Predict time to complete the task based on the current productivity Manage inspection resources Quantity of concrete ditch paving (SQYD) December 2012 January 2013 Date Constant productivity line

19 Guide to Digital Data Workflows 19

20 Phase PROCESS MAP Process map 20 Task Actor ER Database

21 Exchange Requirement Matrix Data Attributes ERs

22 22 Summary Analog -> Digital (transformative changes) Deep data analysis is possible Better and smarter decision making and project delivery

23 23 Questions??? 2016, All rights reserved, Douglas D. Gransberg