Road Network Export File Format

8/9/2019 Road Network Export File Format

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HDM-4 Version 2

The abbreviation TBS is sometimes used in the following table. The meaning of this abbreviation is ‘To Be Specified’.


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HDM-4 Version 2

SECTIONS 77 DRAIN_TYPE Byte 1 B Type of drain (used to determine values for drainage factors DFmin & DFmax) (seenote below)

SECTIONS 78 ALTITUDE Single 4 All Elevation of the road section above the mean sea level in m (ALT)

SECTIONS 79 SHOULDTYPE Byte 1 C TBSSECTIONS 80 WIDN_WIDTH Single 4 C TBS

SECTIONS 81 EDGEDRAINS Yes/No 1 C TBS

SECTIONS 82 NMT_SEPAR Yes/No 1 All TRUE = separate NMT lanes, FALSE = no separate NMT lanes

SECTIONS 83 NMTLANES Byte 1 All Number of non-motorised lanes (NMTLN)

SECTIONS 84 ELANES Single 4 BC Effective number of lanes (ELANES)

SECTIONS 85 CALIB_ITEM Text 255 TBS Name of the Calibration Item for the section

SECTIONS 86 REPCOST Double 8 TBS Asset Valuation - TBS

SECTIONS 87 CONDBASED Yes/No 1 TBS Asset Valuation - TBS

SECTIONS 88 INIROUGH Single 4 TBS Asset Valuation - TBS SECTIONS 89 TERROUGH Single 4 TBS Asset Valuation - TBS

SECTIONS 90 RDFOSBGR_PRRECO Single 4 TBS Asset Valuation - TBS

SECTIONS 91 RDPVLA_PRRECO Single 4 TBS Asset Valuation - TBS

SECTIONS 92 FTCYCLE_PRRECO Single 4 TBS Asset Valuation - TBS

SECTIONS 93 BRDGSTR_PRRECO Single 4 TBS Asset Valuation - TBS

SECTIONS 94 TRFSGN_PRRECO Single 4 TBS Asset Valuation - TBS

SECTIONS 95 RDFOSBGR_RESVAL Single 4 TBS Asset Valuation - TBS

SECTIONS 96 RDPVLA_RESVAL Single 4 TBS Asset Valuation - TBS

SECTIONS 97 FTCYCLE_RESVAL Single 4 TBS Asset Valuation - TBS

SECTIONS 98 BRDGSTR_RESVAL Single 4 TBS Asset Valuation - TBS

SECTIONS 99 TRFSGN_RESVAL Single 4 TBS Asset Valuation - TBS

SECTIONS 100 RDFOSBGR_USELFE Single 4 TBS Asset Valuation - TBS

SECTIONS 101 RDPVLA_USELFE Single 4 TBS Asset Valuation - TBS

SECTIONS 102 FTCYCLE_USELFE Single 4 TBS Asset Valuation - TBS

SECTIONS 103 BRDGSTR_USELFE Single 4 TBS Asset Valuation - TBS

SECTIONS 104 TRFSGN_USELFE Single 4 TBS Asset Valuation - TBS SECTIONS 105 RDFOSBGR_AGE Single 4 TBS Asset Valuation - TBS

SECTIONS 106 RDPVLA_AGE Single 4 TBS Asset Valuation - TBS

SECTIONS 107 FTCYCLE_AGE Single 4 TBS Asset Valuation - TBS

SECTIONS 108 BRDGSTR_AGE Single 4 TBS Asset Valuation - TBS

SECTIONS 109 TRFSGN_AGE Single 4 TBS Asset Valuation - TBS

SECTIONS 110 COMPAGEYEAR Integer 2 TBS Asset Valuation - TBS

SECTIONS 111 USFLFEUNIT Byte 1 TBS Asset Valuation - TBS

SECTIONS 112 ID Long

Integer

4 TBS Unique identifier of the section for use internally to link to TRAFFIC table


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HDM-4 Version 2

TableName

Field#

Field Name Type Size SurfaceClass

Comments New inVersion 2

TRAFFIC 1 SEC_IDLongInteger 4 All Identifies the section for which the traffic is defined for

TRAFFIC 2 VEH_ID Integer 2 All Identifies the vehicle for which the traffic is defined for

TRAFFIC 3 VEH_CAT Integer 2 All Vehicle Category (MOTORISED/NON-MOTORISED)

TRAFFIC 4 YEAR_IDX Integer 2 All Not currently used (should be set to 0)

TRAFFIC 5 YEAR Integer 2 All Actual year the traffic is defined for

TRAFFIC 6 AADT Single 4 All AADT of the vehicle for the section in the given year


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HDM-4 Version 2

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Surface Class0 = Bituminous1 = Unsealed2 = Concrete

Bituminous Pavement Type0 = AMBG (Asphalt Mix on Granular Base)1 = AMAB (Asphalt Mix on Asphalt Base)2 = AMAP (Asphalt Mix on Asphalt Pavement)3 = AMSB (Asphalt Mix on Stabilised Base)4 = STBG (Surface Treatment on Granular Base)5 = STAB (Surface Treatment on Asphalt Base)6 = STAP (Surface Treatment on Asphalt Pavement)7 = STSB (Surface Treatment on Stabilised Base)

Unsealed Pavement Type

0 = Gravel1 = Earth2 = Sand

Concrete Pavement Type0 = JPCP (Jointed Plain Concrete Pavement) + Dowel1 = JPCP (Jointed Plain Concrete Pavement) no dowels2 = JRCP (Jointed Reinforced Concrete Pavement)3 = CRCP (Continuous Reinforced Concrete Pavement)

Direction

0 = One-way downhill1 = One-way uphill2 = Two-way

Bituminous Surface Material0 = AC (Asphalt Concrete)1 = HRA (Hot Rolled Asphalt)2 = PMA (Polymer Modified Asphalt)3 = RAC (Rubberised Asphalt Concrete)4 = CM (Cold Mix / Soft Bituminous Mix)5 = PA (Porous Asphalt)6 = SMA (Stone Mastic)

7 = SBSD (Single Bituminous Surface Dressing)8 = DBSD (Double Bituminous Surface Dressing)9 = CAPE (Cape Seal)10 = SL (Slurry Seal)11 = PM (Penetration Macadam)

Unsealed Surface Material0 = lateritic gravel1 = quartzitic gravel2 = volcanic gravels angular3 = coral gravels angular

SNP Derivation Method0 = specified SNP

1 = layer coefficients2 = benkelman beam3 = FWD

Concrete Subgrade Type0 = fine1 = coarse

Unsealed Subgrade Material0 = well-graded gravel-sands with small clay content (GC)1 = gravel-sand mixtures with excess fines (GF)2 = sands with excess fines (SF)3 = clayey silts, inorganic (CL)4 = clays (inorganic) of medium plasticity (CI)5 = clays (inorganic) of high plasticity (CH)

Compaction Method0 = mechanical1 = non-mechanical

Drain Condition0 = Excellent1 = Good2 = Fair3 = Poor4 = Very poor Time Lapse to Patching

0 = < 2 weeks1 = 1 month2 = 2 months3 = 3 months4 = 4 months5 = 6 months6 = 12 months

Drain Type0 = Fully Lined and Linked1 = Surface lined2 = V-shaped hard

3 = V-shaped soft4 = Shallow hard5 = Shallow soft6 = No invert overgrown7 = No drainage effects

Concrete Shoulder Type0 = Non-concrete1 = Mono-concrete2 = Tied-concrete

NMT Lane Surface Type0 = Bituminous1 = Concrete


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HDM-4 Version 2

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2 = Block3 = Gravel4 = Earth5 = Sand

Concrete Base Type0 = Granular1 = Asphalt treated2 = Cement treated

Concrete Joint Seal Type0 = Silicon1 = Asphalt

2 = Preformed3 = NoneConcrete Reinforced Steel Placement0 = chairs1 = tubes

Vehicle Category0 = motorised (MT)1 = non-motorised (NM)2 = unassigned motorised AADT3 = unassigned non-motorised AADT

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