using gps enabled tablets to collect performance & acceptance … · e erforrmmaan ncce...

Using GPS Enabled Tablets To Collect Performance & Acceptance DataJohn MorrisonDelcan - a Parsons CompanyEsri AEC - July 13, 2014

• The transportation construction industry is moving to a more broad use of GPS enabled tools during project delivery

• GPS tools used by inspection teams help “connect the dots” for owners, in turn, building confidence

• Parsons (Delcan) are an industry leader in deploying GPS enabled data collectors

Take Away Points

Reasons for Collecting Field Data

• Land Survey• Asset Audits• Compliance Documentation• Existing Condition Assessment• Construction Inspection• Performance Measures• Job Site Assessment• Environmental Conditions• Manpower and Equipment• …Etc.

• Paper inspection reports• Field staff returns report into office• Office staff process the

information• Report is scanned into a

document repository• Hard copy is stored in a box

Traditional Methods

Traditionally Measuring Progress of Work

• Hand written• Scanned image (loses quality)• Very hard to retrieve actual data• Signatures and data often illegible• No information on whether or not

requirements have been verified

A Typical Inspection Report…

• Hand written• Scanned image (loses quality)• Very hard to retrieve actual data• Uncertainties:

- What alignment were they on?- Did they record the right number?- Is the calculation correct?

A Typical Material Testing Report…

• Field markers containing location information

• Location is approximated from a survey stake

• Survey stakes are often damaged, illegible or moved.

Typical Geospatial Location of Work

More projects (complex or simple) have more advanced contractors starting to use automatic machine control driven by 3D models but owner oversight efforts are still based upon a 30 year old technology with paper plan sheets and hand written forms.

Projects Big and Small

3D Laser Scanner

Plan Sets & Paper Forms

Innovative and advanced owners are moving to GPS enabled data collectors to get better and more consistent geospatial location of points of inspection and testing.

Innovative Users

DOT and Contractor Representatives

So Many Options…

• Numerous applications available for multiple uses:- Asset tracking- Construction management- Photo applications- Environmental evaluation- Etc.

• Multiple platforms available- iOS- Android- Windows- Windows Mobile- Etc.

• Model Motion F5v• Windows 7 Professional• 10”L x 10”W x 0.95”D• 1.2 GHz Intel Processor• 10.4” (1024 x 768) Gorilla glass

screen• Hot swappable Li-Ion battery• Wi-Fi• Qualcomm Gobi 2000 Card• MIL810G, IP54 rated

GPS Enabled Tablet

• 10-15 meters stand alone• 7.5 meters• 20 minute cold fix• 3 minutes warm fix• 1 minute subsequent

Tablet GPS Capabilities

GPS Tablet – Other Capabilities

• Bar code scanning- Indexing of material tests and samples- Bar code stays adhered to cylinder

during cure for later scanning

• Geotagged Images- Record photos with verification

metadata

Field Verification Data Collection

Inspections

Material tests

Location accuracyBetter tools, better training…

RESULT: Better data, increased efficiency

• Able to capture records and associate many attributes in the form of metadata

• GPS coordinate will always be true to the project while project Station and Offset my change

• GPS tracking provides the field inspector an interface to determine which asset/alignment they are performing their work at

• Minimize the number of “hands” that would traditionally be involved with an inspection record

• Mobile workstation- Complete functionality in the office or in the field

GPS Tablet Advatages

• Automated synchronization with current RFC plan sets

- Updated digitally and synched automatically

- No paper plans in the field

• Most have a scribe feature available

• Full version of Windows- Suitable workstation- Recognizable interface- Runs popular software

applications

Other Benefits of Tablets

• Software implementation- Feature loaded- Able to install across multiple platforms and multiple

devices- Scalable for any type of project

• Training Program- User specific for managers and administrators- General “bulk” training for multiple users with the

similar tasks

How Can Tablets Collect Performance & Acceptance Data On Projects?

The project includes the reconstruction of one of the most highly traveled sections of Ohio’s Interstate system within the heart of Columbus.

Complex Example –Columbus Crossroads

Complex Example – Columbus Crossroads• 22 MSE Walls• 4 CIP Walls• 1,200 ft. T-wall• 18 Ramps• Micro-Tunnel

Complex Example – Columbus Crossroads

• 22 Bridges- (2 reconstruction)

• Mainline Roadway- I-71 NB, I-71 SB & I-670 EB

• City Street• All within a 1 sq. mile footprint

Software Implementation

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PERFORMANCE

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• Quality Management Oversight Services for Transportation (QMost)

- Requirements- Verification Auditing- Performance Monitoring- Acceptance

QMost System

STEP 1

• Requirements• Define and organize requirements against a

work breakdown structure.

STEP 2

• Verification• Plan, prioritize and conduct assessments on

the program’s processes, products and management.

STEP 3

• Performance Monitoring• Prepare reports of conformances and non-

conformances and perform trend analysis. Identify systemic issues.

Step 4

• Acceptance• Define and document conditions of

acceptance and link quality records to final acceptance status.


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Requirements Management Interface

• Thousands of requirements are extracted from standard specifications and procedure manuals

• Risk Priority Numbering (RPN) are assigned to each requirement

Requirements Management Interface

• Requirements are loaded into a database application where they are organized and easily accessible.

• These requirements are loaded into a verification based on the contractors CPM or daily work schedule

Requirements

Specs, Proceduresand Manuals RPN

Verification

• The inspector accesses the verification through the GPS tablet while in the field

• This allows a single inspector to move efficiently between different inspection areas

Verification Interface

• The inspector sees the requirements that need to be verified as well as their color coded risk priority

• After record information has been entered, the GPS coordinate is captured by the application

Sampling & Testing Interface

• Digital forms that collect and organize field data for- Concrete air, slump and compressive strength- Soils field compaction, proctor, density and gradations- Asphalt lab and field compaction

• All records indexed and GPS tagged

What Can Be Done With All This Data?

• Raw exported data in tabular form

Report on the Data• Queried data automatically formatted

to a report based on user parametersM

aterials Testing&

Sampling D

ata

Construction D

ata

Design D

ata

Analyzing the Data

• Summary reporting doesn’t always tell the full story• GPS tagged data can be:

- Imported into numerous platforms such as ArcGIS, CAD, etc. to create visual exhibits

- Analyzed further through MS Excel, MS Access, CAD and GIS

Track Inspection Efforts

Conformance Rates

98.9%

100.0%

98.3%

100.0%

97.7%

95.8%

100.0%

100.0%

86.0%

100.0%

84.4%

70% 80% 90% 100%

WallsUtilities

Scope-GeneralRoadway

MOTGeotech

EnvironmentalEarthwork

DrainageDemo

Bridges

Project Construction Performance Rate by Major Work Type

139

533

369

228 1 RD

8 RD

17 RD

5 RD

1NC

1 NC

Adj.99.3% 98.3% 95.6% 97.4%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

0

100

200

300

400

500

600

Sep-11 Oct-11 Nov-11 Dec-11 Jan-11 Feb-11 Mar-11 Apr-11 May-11 Jun-11

Performance R

ateReq

uire

men

ts V

erifi

edMonthly Construction Performance Activity

Conforming Observations RD's Issued

97.5%Average

Performance Measurement

• Performance Data- Graphical summaries of trends- Standard and customized

queries and reports- Tracking of detected issues until

corrected and verified

Stakeholder Confidence

GPS tagging of all data points are used to graphically represent verification efforts showing how the work was verified. This would build confidence in the stakeholders that the work was done right.

GIS Data Points From Construction Data

GPS data points can be exhibited at any frequency• Examples of monthly &

quarterly plots

Field Verification Data Collection

• Inspection and Testing Density Plots

GIS Data Points From Construction Data

Maintenance of Traffic GPS data can be tracked through various platforms including GIS and CAD

Exhibit As-Built DataTolerances can be examined visually through exhibits

Acceptance Dashboard

Final Acceptance Dashboard

• Linked verification records to FA status

• Outstanding Non-Conformances

• Contractor/Owner Punchlist

• WBS Work Elements• Contract-Defined

Deliverables Acceptance

Punch list

AcceptanceConditions

Final Acceptance

Module is able to handle:• Final Verification • Engineer’s Inspection

and Punch List • Final Inspection • Final Inspector’s Punch

List (if warranted) • Final Documentation • Final Certification

In Summary

• GPS tablets can aid in the efficiency of construction inspection while reducing staff

• Tablet can significantly reduce the volume of paper forms and reports

• Ability to handle complex project phasing through GPS coordinates

• Automated RFC plan distribution through a secure wireless network

• Inspection data can be uploaded daily reducing turn times• Performance data can be used to analyze and forecast

pointing out positive and negative trends • Acceptance data can be used to track specific conditions

through closeout for the handing over of a quality project

Questions?

John MorrisonParsons Corporation

[email protected]

using gps enabled tablets to collect performance & acceptance … · e erforrmmaan ncce...

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