2.11 Toolbox Documentation Return to Table of Contents

Item Definitions

The following are sample item definitions for the various attribute tables used by the 2.11 Toolbox. Specific Toolbox installations may differ slightly. However, it is important that items that are defined numerically here be defined as numeric in your coverages, and character items should remain character type. Furthermore, it is critical that definitions of items be consistent between the arcs and the project sections.

The Sys/User column indicates whether the item was defined by the system, or is a user defined item. The Item Name, Width, Output, Type, and N.Dec columns indicate how the item is defined in ArcInfo.

For general information about coverages, please refer to Coverages Used by the 2.11 Toolbox. For more specific information about the attributes that EMME/2 uses, see Standard EMME/2 Attributes.

Features Attribute Tables Used by the 2.11 Toolbox

Items on the Base Network node attribute table (base_network.NAT)
Items on the Base Network arc attribute table (base_network.AAT)
Items on the Project Database route attribute table (base_network.RATProject)
Items on the Project Database section attribute table (base_network.SECProject)
Items on the Turns Database route attribute table (base_network.RATTurns)
Items on the Turns Database section attribute table (base_network.SECTurns)

Some useful relates


Items of Base Network Nodes (base_network.nat)

Sys/User  Item Name      Width Output Type   N.Dec
System    ARC#             4     5     B      -
System    BASE_NETWORK#    4     5     B      - 
System    BASE_NETWORK-ID  4     5     B      - 
System¹   X-COORD          4    12     F      3     
System¹   Y-COORD          4    12     F      3     
User      UI1              4     5     B      -    User data field² 
User      UI2              4     5     B      -    User data field²
User      UI3              4     5     B      -    User data field²
User      LABEL            5     6     C      -    EMME/2 node descriptor
User      EMME2NUM         4     5     B      -    EMME/2 node number³

(1) These items are added with the addxy command from the Arc prompt
(2) Definition dependent on details of EMME/2 model implementation
(3) Must be unique
Back to List of Feature Attribute Tables

Items of Base Network Arcs (base_network.aat)

Sys/User  Item Name      Width Output Type  N.Dec 
System    FNODE#           4     5     B     - 
System    TNODE#           4     5     B     - 
System    LPOLY#           4     5     B     - 
System    RPOLY#           4     5     B     - 
System    LENGTH           4    12     F     3 
System    BASE_NETWORK#    4     5     B     - 
System    BASE_NETWORK-ID  4     5     B     - 
User      TYPE_FT          2     7     B     -    Link type in FT direction¹
User      TYPE_TF          2     7     B     -    Link type in TF direction¹
User      LANES_FT         4     5     F     2    Lanes in FT direction¹
User      LANES_TF         4     5     F     2    Lanes in TF direction¹
User      MODES_FT         6     6     C     -    Modes allowed on link
User      MODES_TF         6     6     C     -    Modes allowed on link
User      VDF_FT           2     3     I     -    Volume-Delay function 
User      VDF_TF           2     3     I     -    Volume-Delay function 
User      UL1_FT           4     5     B     -    User data field² 
User      UL1_TF           4     5     B     -    User data field² 
User      UL2_FT           4     5     F     3    User data field² 
User      UL2_TF           4     5     F     3    User data field² 
User      UL3_FT           4     5     B     -    User data field² 
User      UL3_TF           4     5     B     -    User data field²

(1) For full explanation of FT and TF, please refer to Important Concepts.
(2) Definition dependent on details of EMME/2 model implementation
Back to List of Feature Attribute Tables

Items of Project Database Routes (base_network.ratproject)

Sys/User  Item Name      Width Output Type  N.Dec 
System    PROJECT#         4     5     B     -
System    PROJECT-ID       4     5     B     -
User      TITLE           80    80     C     -    Name of project
User      YEAR             4     5     B     -    Year of implementation
User      FILE            32    32     C     -    Text file with project info
User      GROUP_A          1     1     I     -    Is project in Group A?¹
User      GROUP_B          1     1     I     -    Is project in Group B?¹
User      GROUP_C          1     1     I     -    Is project in Group C?¹

(1) Positive value = Yes, 0 = No
Back to List of Feature Attribute Tables

Items of Project Database Sections (base_network.secproject)

Sys/User  Item Name      Width Output Type  N.Dec
System    ROUTELINK#       4     5     B     -
System    ARCLINK#         4     5     B     -
System    F-MEAS           4    12     F     3
System    T-MEAS           4    12     F     3
System    F-POS            4    12     F     3
System    T-POS            4    12     F     3
System    PROJECT#         4     5     B     -
System    PROJECT-ID       4     5     B     -
User      TYPE_FT          2     7     B     -    Link type in FT direction¹
User      TYPE_TF          2     7     B     -    Link type in TF direction¹
User      LANES_FT         4     5     F     2    Lanes in FT direction¹
User      LANES_TF         4     5     F     2    Lanes in TF direction¹
User      MODES_FT         6     6     C     -    Modes allowed on link
User      MODES_TF         6     6     C     -    Modes allowed on link
User      VDF_FT           2     3     I     -    Volume-Delay function 
User      VDF_TF           2     3     I     -    Volume-Delay function 
User      UL1_FT           4     5     B     -    User data field² 
User      UL1_TF           4     5     B     -    User data field² 
User      UL2_FT           4     5     F     3    User data field² 
User      UL2_TF           4     5     F     3    User data field² 
User      UL3_FT           4     5     B     -    User data field² 
User      UL3_TF           4     5     B     -    User data field²
User      LENGTH           4     5     B     -    Link length³ 

(1) For full explanation of FT and TF, please refer to Important Concepts.
(2) Definition dependent on details of EMME/2 model implementation
(3) A link length of 0 indicates default length
Back to List of Feature Attribute Tables

Items of Turns Database Routes (base_network.ratturns)

Sys/User  Item Name      Width Output Type  N.Dec 
System    TURNS#           4     5     B     - 
System    TURNS-ID         4     5     B     - 
User      ATNODE           4     5     B     -    At Node of turn function¹
User      UP1              4     5     B     -    User data field²
User      UP2              4     5     B     -    User data field²
User      UP3              4     5     B     -    User data field²
User      FUNCTION         4     5     B     -    Turn function
User      PROJECT          4     5     B     -    Associated project ID# 

(1) For details of how turn information is stored, refer to the Turns Database
(2) Definition dependent on details of EMME/2 model implementation

Back to List of Feature Attribute Tables

Items of Turns Database Sections (base_network.secturns)

Sys/User  Item Name      Width Output Type  N.Dec 
System    ROUTELINK#       4     5     B     - 
System    ARCLINK#         4     5     B     - 
System    F-MEAS           4    12     F     3 
System    T-MEAS           4    12     F     3 
System    F-POS            4    12     F     3 
System    T-POS            4    12     F     3 
System    TURNS#           4     5     B     - 
System    TURNS-ID         4     5     B     -    1=From, 2=To¹

(1) For details of how turn information is stored, refer to the Turns Database
Back to List of Feature Attribute Tables

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