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From page 22... ... The NBMD data system is a set of standard data tables, standard headings for data fields, standard keywords for indexing fields, and standard methods for the creation of unique identifiers for bridges, bridge elements, maintenance actions and maintenance resources. NBMD is instantiated as a set of plain text data files, and a set of XML documents each supported by an XML schema. Read the entire page →
From page 23... ... joints in superstructure and substructure components. Mechanical /Electrical Electrical or mechanical systems on bridges, includes all mechanical and electrical equipment for movable spans, all gates, lights and delineators for traffic. Read the entire page →
From page 24... ... Modify operations may be in response to obsolete features, as when railings are upgraded, or in response to damage or deterioration. Maintenance Activities Activities are descriptive keywords for NBMD bridge maintenance operations. Read the entire page →
From page 25... ... Seal Cracks Use of epoxy, high-weight methyl-methacrylate or other pourable materials to fill existing cracks. Usually applied to concrete surfaces, but can be crack sealing in asphalt surfaces and crack sealing in timber elements. Read the entire page →
From page 26... ... Activities for Replace operations are described in Table 15. Activities for Modify Operations. Read the entire page →
From page 27... ... Repair Operations. Among the activities for Repair operations: Patch applies to concrete structural components and bituminous wearing surfaces; Re-attach applies to anchors for 27 Clean/Clear Bridge Components Wash All except earth slopes and banks. Read the entire page →
From page 28... ... Among the activities for Modify operations: Geometry applies to improvements to clearances; protection applies to new protection of structural components against corrosion, or channels against scour; Vulnerability applies to the potential for sudden failure of structural components; strength applies to increases in load rating for structural components, and increases in motion or flow capacity for joints, drains, bearings and channels; Function applies to changes in load path or movement regime; Assembly applies to upgrades of joints, bearings, railings and other devices. A list of the frequent uses of Modify activities with bridge components is shown in Table 23. Read the entire page →
From page 29... ... . The tables are linked through global identifiers for bridges, maintenance events, and definitions for actions, bridge elements, and resources. Read the entire page →
From page 30... ... NBMD Data Sources NBMD contains data adequate for computation of total costs and unit costs, generation of reports of maintenance accomplishments, creation of performance standards, and evaluations of maintenance actions. NBMD preserves the history of maintenance events so that long-term performance of actions can be examined, life-cycle costs can be computed, and the evolution of maintenance programs can be tracked. Read the entire page →
From page 31... ... Element_Inspection_Table Element-level condition data adapted from Pontis' eleminsp table. Element_Unit_Cost_Table Unit costs of maintenance actions generated by NBMD viewer utility. Read the entire page →
From page 32... ... NBMD keywords are either standard keywords or descriptive keywords. Standard keywords are proposed in this project, and are intended to provide simple, definite description of bridge elements, maintenance actions, and maintenance Data Field Description Dataset DOT{Year Global identifier attached to all records in a set of bridge work, condition, and inventory data. Read the entire page →
From page 33... ... Standard keywords and descriptive keywords are used in separate data fields in NBMD. Maintenance Actions Bridge maintenance actions are described by four keyword fields. Read the entire page →
From page 34... ... Table 32 lists the standard keywords for Component and Material, and the keywords for Part, Form, and Protection that appear in the current NBMD datasets. The Component keywords for bridge elements are identical to the Component keywords for maintenance actions. Read the entire page →
From page 35... ... 35 Component Material Part Form Protection Approach/Embankment Bearing Bridge Channel Culvert Deck Joint nonBridge Rail/Walk Substructure Superstructure Asphalt Concrete Elastomeric Metal PS Concrete Steel Timber Abandoned Abutment Arch Assembly Beam Cable Cap Column Compression Corrugated Deck Truss Electrical/Mechanical Sys Enclosed Expansion Fender Finger Fixed Flag Flume Footing Footing seal Frame Grid Movable Paint Ped/Bike Pier Pile Pile Cap Pin/Hanger Plate Plug Pourable Private Railing Railing with Sidewalk Railroad Seal Sign Slab Slope Protection Stringer Thru Truss Tunnel Cap/Footing Headwall Sidewalk Trough Bottom Chord Box Concretefilled Deck Crack Disk Drilled Fatigue Impact Modular Open Pack Rust Pot Scour Section loss Settlement Shell Soffit Strip seal Wall Portal Roadway Wearing Surface Damage Incident Compression AC Overlay AC Overlay - Protected Cathodic Coated Coated Bars Painted Rigid Overlay Thin Overlay Bituminous overlay Bituminous overlay, coated bars Concrete encased Galvanized Bituminous overlay, Membrane, coated bars Rigid overlay, coated bars Table 32. NBMD element standard keywords. Read the entire page →
From page 36... ... The static string ‘Act' marks DOT_Action_ID DOT's code for maintenance activity DOT_Action_Description DOT_Unit DOT's reporting unit for this work activity NBMD_Component NBMD standard keyword for bridge component NBMD_Operation NBMD standard keyword for maintenance operation NBMD_Activity Descriptive keyword for maintenance action NBMD_Mode Descriptive keyword for maintenance action NBMD_Unit NBMD unit of measure, if different from DOT unit NBMD_CoamString Standard abbreviations for bridge component and maintenance operation Table 33. NBMD Activity_Definition_Table. Read the entire page →
From page 37... ... 37 Data Field Note Dataset Global Identifier NBMD_Elemkey Dataset{Elem{DOT_Elemkey Global identifier for bridge element, tied to dataset DOT_Elemkey From Pontis (usually) , the numeric ID for an element elemshort From Pontis, short name for bridge element elemlong From Pontis, long name for bridge element DOT_Unit Unit of measurement for bridge element Statecnt Number of condition states for bridge element Component NBMD keyword for bridge component Material NBMD keyword for element material Part NBMD keyword for specific part of bridge component indicated by this element Form NBMD keyword for form of element (such as open beam versus box beam) Read the entire page →
From page 38... ... NBMD Inspection_Cross_Reference_Table. Data Field Description Dataset NBMD global identifier NBMD_Event_ID NBMD global identifier NBMD_Bridge_ID NBMD global identifier Action_Component Bridge component identified in event record Action_Operation Maintenance operation identified in event record Event_Total_Cost Event total cost allocated to this element NBMD_Prior_Insp Inspection ID, inspection before maintenance event NBMD_Post_Insp Inspection ID, inspection after maintenance event NBMD_Element_ID NBMD global identifier Element_long Long name of element Element_Unit Unit of measurement for element Prior_Total_Quantity Element total quantity prior to maintenance event Post_Total_Quantity Element total quantity after maintenance event Element_Component NBMD keyword for element component Element_Material NBMD keyword for element material Element_Form NBMD keyword for element form Element_Part NBMD keyword for element part Element_Protection NBMD keyword for element protection Improvement_Quantity Quantity of element moved to better condition state Prior_State Element condition before maintenance; best condition state among states that lose quantity after maintenance Post_State Element condition after maintenance; worst condition state among states that gain quantity after maintenance Inventory_Change Change in total quantity of element due to maintenance Cost_Type Cost of single event, or median cost of similar events Element_Unit_Cost Event cost divided by improved quantity of element Element_Unit_Cost_Unit Units of measurement for unit cost Cost_Status One among Single element, Multiple elements, Multiple components Table 37. Read the entire page →
From page 39... ... Size_Tables are created 39 Data Field Description DataSet Global Identifier NBMD_Bridge_ID Global Identifier NBMD_Inspection_ID Global Identifier brkey From Pontis, bridge key inspkey From Pontis, inspection key Inspection_Date Date of inspection, YYYY/MM/DD NBI_Done Yes / No indicated as 1/0, from Pontis Element_Level_Done Yes / No indicated as 1/0, from Pontis Element_Inspection_Date Date of inspection presented as YYYY/MM/DD UW_Required 1/0 indicator that underwater inspection is required UW_Done 1/0 indicator that underwater inspection was performed FC_Required 1/0 indicator that fracture critical member inspection is required FC_Done 1/0 indicator that fracture critical member inspection was performed Special_Required 1/0 indicator that special or other inspection is required Special_Done 1/0 indicator that special or other inspection was performed Appraisal_Date Date of NBI appraisals Rail_NBI_36A NBI item 36 for traffic safety features Rail_Transition_NBI_36B Approach_Rail_NBI_36C Approach_Rail_End_NBI_36D Open_Posted_Closed_NBI_41 NBI item 41 for structure open, posted or closed. Deck_Geometry_NBI_68 NBI item 68 Deck geometry Underclearance_NBI_69 NBI item 69 Underclearances Waterway_Adequacy_NBI_71 NBI item 71 Waterway adequacy Pier_Protection_NBI_111 NBI item 111 Pier or abutment protection Scour_Critical_NBI_113 NBI item 113 Scour Critical Bridges Approach_Alignment_NBI_72 NBI item 27 Approach roadway alignment Deck_Rating_NBI_58 NBI item 58 Deck condition rating Superstructure_Rating_NBI_59 NBI item 59 Superstructure condition rating Substructure_Rating_NBI_60 NBI item 60 Substructure condition rating Channel_Rating_NBI_61 NBI item 61 Channel and channel protection Culvert_Rating_NBI_62 NBI item 62 Culvert condition Structural_Evaluation_NBI_67 NBI item 67 Structural evaluation NBI_Status NBI status NBI_Sufficiency_Rating NBI sufficiency rating NBI_Sufficient_Prefix NBI position 428 Notes From Pontis Table 39. Read the entire page →
From page 40... ... Start_Date Earliest record for this maintenance event, shown as YYYY/MM/DD End_Date Latest record for this maintenance event, shown as YYYY/MM/DD. DOT_Activity_ID DOTs' identifying code for maintenance activity DOTs' reference number such as work order, contract number, crew number or DOT_Activity_Title DOTs' title for maintenance activity DOT_RefA other identifying code useful for retrieval of internal DOT records DOT_RefB Additional DOT reference number NBMD_Component NBMD standard keyword NBMD_Operation NBMD standard keyword NBMD_Activity NBMD descriptive keyword NBMD_Mode NBMD descriptive keyword NBMD_CoamString Abbreviations for component and operation DOT_Production Quantity of work accomplished DOT_Production_Unit Measurement unit for work DOT_Unit_Cost Total cost divided by work quantity DOT_Unit_Cost_Unit Measurement unit for unit cost DOT_Total_Cost Cost reported by DOT, summed from multiple work records or resource records Cost_Unit Monetary unit for total cost Notes Table 41. Read the entire page →
From page 41... ... Data Field Description Dataset Global identifier Resource_ID Global identifier NBMD_Bridge_ID Global identifier NBMD_Event_ID Global identifier NBMD_DOT_Event_ID Concatenation of NBMD_Bridge_ID and DOT activity code, if available DOT_Bridge_ID Structure_Number from NBI records, or bridge key (brkey) from Pontis bridge database Start_Date Earliest resource record for this maintenance event End_Date Latest resource record for this maintenance event DOT_Activity_ID DOT's identifying code for maintenance activity DOT's title for maintenance activity DOT's reference number such as work order, contract number, crew DOT's identifying code for resource DOT's title for resource DOT's category for resource DOT_Activity_Title DOT_RefA number or other identifying code useful for retrieval of internal DOT records on bridge maintenance work DOT_RefB Additional DOT reference number DOT_Resource_ID DOT_Resource_Description DOT_Resource_Category DOT_Resource_Quantity Use of resource in hours, miles, mass, volume, etc. Read the entire page →
From page 42... ... The XML document continues with similar structure for all records in the table. 42 Data Field Description Dataset Global identifier NBMD_Bridge_ID Global identifier NBMD_Road_ID Global identifier Record_Type NBI item 5A Record Type Kind_Highway From Pontis roadway table Level_Service NBI item 5C Designated level of service Route_Prefix NBI item 5B Route signing prefix Route_Number NBI item 5D Route number Direction_Suffix NBI item 5E Directional suffix Roadway_Name From Pontis roadway table Kilometer_Post NBI item 11 Kilometerpoint Lanes_On NBI item 28A Lanes on the structure Lanes_Under NBI item 28B Lanes under the structure Functional_Class NBI item 26 Functional classification of inventory route ADT NBI item 29 Average daily traffic Year_ADT NBI item 30 Year of average daily traffic Direction_Traffic NBI item 102 Direction of traffic ADT_Pct NBI item 109 Average daily truck traffic, percentage Road_Speed From Pontis roadway table Roadway_Width NBI item 51 Bridge roadway width curb-to-curb Approach_Width NBI item 32 Approach roadway width Table 44. Read the entire page →
From page 43... ... 43 Data Field Description Dataset_ID Global identifier NBMD_Bridge_ID Global identifier brkey From Pontis, bridge key bridge_id From Pontis, usually a short form of the NBI structure number Structure_Number NBI item 8 Structure number Structure_Name From Pontis Features_Intersected NBI item 6A Features intersected District NBI item 2 Highway agency district County NBI item 3 County (parish) code Facility NBI item 7 Facility carried by structure Location NBI item 9 Location Custodian NBI item 21 Maintenance responsibility Owner NBI item 22 Owner Admin_Area From Pontis State_Code NBI item 1 State code Year_Built NBI item 27 Year built Year_Reconstructed NBI item 106 Year reconstructed Historical_Significance NBI item 37 Historical significance Design_Load NBI item 31 Design load Type_Service_Bridge NBI item 42A Type of service on bridge Type_Service_Under NBI item 42B Type of service under bridge Number_Spans_Main NBI item 45 Number of spans in main unit Number_Approach_Spans NBI item 46 Number of approach spans Length_Maximum_Span NBI item 48 Length of maximum span Structure_Length NBI item 49 Structure length Deck_area From Pontis Bridge_Median NBI item 33 Bridge median Skew NBI item 34 Skew Material_Type_Main NBI item 43A Structure type main, kind of material/design Design_Type_Main NBI item 43B Structure type main, type of design/construction Material_Type_Approach NBI item 44A Structure type approach, kind of material/design Design_Type_Approach NBI item 44B Structure type approach, type of design/construction Deck_Structure_Type NBI item 107 Deck structure type Type_Membrane NBI item 108B Type of membrane Type_Wearing_Surface NBI item 108A Type off wearing surface Deck_Protection NBI item 108C Deck protection Deck_Width NBI item 52 Deck width, out-to-out Left_Walk_Width NBI item 50A Left curb/sidewalk width Right_Walk_Width NBI item 50 Right curb/sidewalk width Notes Table 45. Read the entire page →
From page 44... ... Dataset Action_ID DOT_Action_ID DOT_Action_Description DOT_Unit NBMD_Component NBMD_Operation NBMD_Activity TnDOT{2007 TnDOT{2007{Act{400 400 SPECIAL PROJECTS each Bridge TnDOT{2007 TnDOT{2007{Act{477 477 TRAFFIC CONTROL each Bridge nonMaintenance TnDOT{2007 TnDOT{2007{Act{450 450 STRUCTURE CLEANING each Bridge Clean TnDOT{2007 TnDOT{2007{Act{454 454 MAJ STRUCTURE REPAIR each Bridge Repair Major TnDOT{2007 TnDOT{2007{Act{402 402 CRACK REPAIR each Bridge Repair Crack TnDOT{2007 TnDOT{2007{Act{451 451 MINOR STRUCTURE REPAIR each Bridge Repair Minor TnDOT{2007 TnDOT{2007{Act{412 412 JOINT REPAIR each Joint Repair TnDOT{2007 TnDOT{2007{Act{433 433 REPAIR DRAIN STRCT - EACH each Drain Repair TnDOT{2007 TnDOT{2007{Act{401 401 MANUAL SPOT PATCHING each Bridge Repair Patch TnDOT{2007 TnDOT{2007{Act{438 438 MANUAL BRUSH CONTROL each Bridge Clean Brush TnDOT{2007 TnDOT{2007{Act{447 447 MANUAL SWEEPING each Bridge Clean Sweep TnDOT{2007 TnDOT{2007{Act{405 405 MILLING each Bridge Repair TnDOT{2007 TnDOT{2007{Act{475 475 GUARDRAIL + BARRIER WALL each Rail/Walk Repair TnDOT{2007 TnDOT{2007{Act{461 461 DE-ICING (SALT) each Bridge nonMaintenance TnDOT{2007 TnDOT{2007{Act{463 463 ANTI-ICING (SALT BRINE) Read the entire page →
From page 45... ... OrDOT{2006 OrDOT{2006{S8837A064 01072 OrDOT{2006{S8837A064 01072{nBrd{ OrDOT{2006{S8837A064 01072{Insp{0 NBI Middle 0 S8837A064 01072 -1 OrDOT{2006 OrDOT{2006{S8837A064 01072 OrDOT{2006{S8837A064 01072{nBrd{ OrDOT{2006{S8837A064 01072{Insp{0 NBI Post 0 S8837A064 01072 -1 Figure 7. XML document (sample) Read the entire page →

From page 22...

... The NBMD data system is a set of standard data tables, standard headings for data fields, standard keywords for indexing fields, and standard methods for the creation of unique identifiers for bridges, bridge elements, maintenance actions and maintenance resources. NBMD is instantiated as a set of plain text data files, and a set of XML documents each supported by an XML schema.