Drainage Identification, Analysis and Mapping Project Dr. Jay N. Meegoda, PE Professor of Civil & Env. Eng. New Jersey Institute of Tech. Newark, NJ 07102-1982
Drainage Identification, Analysis and Mapping Project NJDOT Research Project Manager: Ms. Stefanie Potapa NJDOT Research Customer: Ms. Nancy Ciaruffoli and Mr. Andrew Tunnard Research Team: Drs. Meegoda, Juliano, Potts, Tang, and Marhaba, Mr. Liu and Mr. Bell of NJIT and Dr. Guo of Rutgers
Collapse of New York State Thruway (I-88) due to culvert failure on June 28, 2006 (New York State Police Photo) 3
Asset Management 101 Governmental Accounting Standards Board Statement No. 34 (GASB 34) requires that state and local governments report the value of their infrastructure assets o Phase I- Need to locate and catalogue all assets o Phase II- Need to present the current value of infrastructure assets Value of infrastructure asset depends on remaining service life Remaining service life is based on current condition state 4
GASB 34 Requires Utilities to: Maintain an up-to-date inventory of eligible infrastructure assets. Perform condition assessments of eligible infrastructure assets at least every three years, using a replicable basis of measurement and measurement scale. Summarize the results, noting any factors that may influence trends in the information reported. Estimate each year the annual amount to maintain and preserve the eligible infrastructure assets at or above a prescribed level. Compare the estimated maintenance cost of infrastructure assets at or above the established condition level based on amounts spent during each of the past five reporting periods. 5
Management of Underground Infrastructure Inventory and Health Monitoring o Condition State Valuation and Maintenance of Value o Remaining service life and value Financial Analysis o Cost of rehabilitation/repair or replacement and user cost of failure Return on Investment o Prioritize the action User Costs and Charges o Way to raise funds, manage assets including equity implications Customer Satisfaction and Goodwill o Final objective of any service provided 6
Typical Health Monitoring and Instrumentation for Pipes 7
DIAMS Background DIAMS integrates drainage asset data obtained from field inspections into a comprehensive information, analysis and mapping system for electronically documenting, monitoring, and managing these assets. DIAMS manages the database of culvert and storm drain pipe asset inventories to assist with verifying locations, tracking condition states, assessing performance, scheduling inspection and maintenance activities, and selecting and budgeting rehabilitation and replacement jobs. 8
DIAMS User Interfaces DIAMS Home Screen Home Screen 9
The Asset identification interface consists of four sets of data review/edit forms and several functional sub-forms: Asset Identification Interface Home Screen Asset Identification 10
The Structure Data Form displays Inlet/Outlet structure IDs, their attributes and inspection results. Using the drop-down boxes, users can search a particular structure record using Route, Milepost and Structure ID. Inlet/Outlet Structure Data Module Home Screen Asset Identification Structures 11
The Pipe Data Form displays Pipe Segment, Inlet/Outlet nodes, pipe attributes, inspection results and condition states. Users can search a particular pipe record using Route, Milepost and Inlet/Outlet nodes Pipe Data Form Home Screen Asset Identification Pipes 12
The lower portion of the Pipe Data Form lists all related inspection information of the selected pipe segment record; including comments, photo file names, and movie file names. Users can edit data fields on this form; fill-in missing data; and click the Update Record button to save changes. Clicking the underlined movie name in Video Link will link to its video file if it has been stored in the image folder under the application path. The linked movie file will automatically play with the local system media player as shown below. Pipe Data Form Home Screen Asset Identification Pipes 13
The Pipe Assessment Form summarizes the pipe s material type, current condition, treatment cost, and relevant date information for users to make operational decisions such as if the pipe needs inspection or rehabilitation treatment. Pipe Assessment Form Home Screen Asset Identification Pipes Pipe Assessment 14
Pipe Treatment Decision-Making Process DIAMS will automatically calculate the standardized pipe treatment costs for the current pipe segment under review; according to 1) pipe age 2) condition state 3) segment length 4) diameter and 5) pipe material type, (e.g., Cost of New installation, Cost of Inspection/Cleaning cost, Cost of Rehabilitation and Cost of Replacement). Standardized costs are calculated based on the 2011 NJDOT Engineer s Estimate Maintenance Drainage Repair Contract unit costs. The unit cost table is a template which can be modified at any time in the DIAMS settings based on previous year s bids, working experiences etc. Additionally, new contract items can be added or deleted if not used. Itemized treatment costs may also be set by the user for the particular pipe. DIAMS will use the existing values until they have been changed. Home Screen Asset Identification Pipes Pipe Assessment 15
If further refinements for estimated treatment costs are required, click Estimate Costs button to open the Cost Estimation Form to make cost justification. Knowing the actual total treatment costs, users can directly input these total costs into the cost fields on the form. Or, click one of the Help buttons next to the cost fields to bring up a cost analysis template form. Home Screen Asset Identification Pipes Pipe Assessment 16
Help menu: Pipe Replacement Cost Estimate Home Screen Asset Identification Pipes Pipe Assessment 17
This template form will guide users to consider relevant cost components in estimating pipe treatment costs. Home Screen Asset Identification Pipes Pipe Assessment 18
In cases when both the pipe current condition state and pipe age are known, the Treatment Techniques Form will open. This form displays the system recommended techniques, and the current and improved condition states that are retrieved from the treatment policy tables. Users can select the desired technique listed in the sub-form. Treatment Techniques Home Screen Asset Identification Pipes Pipe Assessment 19
In the Treatment Justification Form, DIAMS will automatically compare the treatment technique costs and notify the user if the selected action is justified. The user can make a choice to either accept the system recommendation or reject. There may be several actions justified. Only one action can be selected. If a justified action is selected, the recommend treatment technique will be saved in the decision comment text box and transferred back to the database. The decision will show up on the Pipe Assessment Form for the user to review. Treatment Cost Justification Form Home Screen Asset Identification Pipes Pipe Assessment 20
Financial Analysis Module After the treatment techniques for the pipe segments have been determined, the user can define maintenance projects. Here, a maintenance project is defined as a group of pipe treatment jobs to be considered within a certain allocated total budget. With DIAMS, users can search the optimal or near optimal solutions for the budget allocation among these pipe treatment jobs. The pipe assessment and optimization process are the core components of DIAMS pipe financial analysis module. Home Screen Financial Analysis 21
Pipe Project Optimization The Pipe Project Optimization Form consists of four major components: 1. The system evaluates the Project Input Data and summarizes its major attributions: a. How many pipe segments are in the project? b. What is the total capital required by their treatment jobs? c. How many are pre-fixed jobs as well as the minimum required capital for these pre-fixed jobs? 2. In the upper sub-form, the Project Input Data Set is displayed. In the lower sub-form, the solution results will be displayed after running calculation algorithms. At the bottom, a short label will state the final solution summary values. Home Screen Financial Analysis 22
Financial Analysis User Interface Home Screen Financial Analysis 23
Define Network Group Pipe segments assigned treatment techniques will be listed on the form. Pipes that were already treated or those with decisions of Not Determined or Do nothing are omitted. Users can select a group of pipes as the elements of a project by clicking the box under Selected. Users can also decide if some of the selected segments must be included in the optimal solution regardless of their treatment cost by checking Pre-fixed. Home Screen Financial Analysis Define Network Group 24
Review Input Data After a project has been defined, click Review Input Data button on the Financial Analysis Module Form to review the project input data set. Users can make last minute changes on the input data review form and send the confirmed input data set to optimization solution tables. Home Screen Financial Analysis Review Input Data 25
Optimized Solution Home Screen Financial Analysis Optimize Budget 26
Financial Analysis Sample Solution Report Specific layout and contents can be modified to meet customer requirements. Home Screen Financial Analysis Generate Report 27
Stormwater Devices There are two (2) stormwater data modules in the DIAMS: 1. MTD Data Entry module for MTD records data entry and data preview 2. MTD Data Review module for users to register/view/edit complete related MTD information in detail (e.g., device history) Home Screen Asset Identification Devices 28
Stormwater Devices - MTD Data Entry The MTD Data Entry form contains all 160 current NJDOT inspected stormwater device asset data, inspection data and major maintenance records. Information is contained in sub-forms under the following three tabs: o Device General Info. o (i.e. location map, GPS coordinates, manufacturer designated sediment cleanout depth) o Inspection Information o (i.e. latest inspection, measurements and photos) o Maintenance Information o (i.e. Cleanout/Repair/Replacement photos) Users can either look up MTD records by Route & Milepost or Device ID (as assigned by NJDOT) Home Screen Asset Identification Devices MTD Data Entry 29
Home Screen Asset Identification Devices MTD Data Entry 30
Inspection Information form Home Screen Asset Identification Devices MTD Data Entry 31
Home Screen Asset Identification Devices MTD Data Entry 32
Stormwater Devices Home Screen Asset Identification Devices MTD Data Review 33
Stormwater Devices Home Screen Asset Identification Devices MTD Data Review 34
Outfalls The DIAM system has an Outfall module containing information of all current 1,526 NJDOT inspected Outfall records statewide o Users can look up Outfall records by first selecting a Route (e.g., RT10), o Next, select nearest Milepost for location of interest (e.g., 1) o And finally selecting an available outfall at an exact milepost location (e.g., OUTFALL.RT10E.0.655) to display the outfall asset record and most recent inspection data. Home Screen Asset Identification Outfalls 35
Outfalls 1. 2. 3. Home Screen Asset Identification Outfalls 36
Outfalls Inspection Report Home Screen Asset Identification Outfalls 37
Data Uploading Module The Data Uploading Module provides the functionality for users to upload Vendor Pipe Inspection Databases (Access 2000 format) into DIAMS database The module will permit automatic appending of valid data records from a source database (i.e. Inspection DVDs). Current valid databases include Mount Construction Inc., National Water Main Cleaning Co. and Fred Cook, Inc. Any unqualified records will be disregarded. DIAM system QA/QC procedures will alert users if they provide inaccurate or missing critical data and they will be asked to resubmit. Home Screen Data Uploading 38
Inspection Data Uploading Module Home Screen Data Uploading 39
Summary and Conclusions A drainage identification, analysis and mapping system that will comply with both requirements stipulated by the Governmental Accounting Standards Board (GASB-34) and new federal storm water regulations was developed. It maintains an up-to-date inventory of eligible infrastructure assetspipes, inlet/outlet structures, manufactured treatment devices and outfalls. It consists of three major computer software components: databases, user interfaces, and a data administration module. It contains a financial analysis module capable of analyzing decisions to inspect, rehabilitate/replace or do nothing at both project and network levels. At the project level this is achieved by comparing inspection and/or rehabilitation/replacement costs with risks and costs associated with failure. At the network level, the associated costs are optimized to meet annual maintenance budget allocations by prioritizing culverts needing inspection and rehabilitation/replacement It has an online data submission and quality control module for inspection data.