Unit Rates For Asset Valuation Purposes - c.ymcdn.com · • Identifying and prioritising transport...
-
Upload
truongthuan -
Category
Documents
-
view
216 -
download
0
Transcript of Unit Rates For Asset Valuation Purposes - c.ymcdn.com · • Identifying and prioritising transport...
1 |
Unit Rates For Asset Valuation Purposes
Local Government Asset Management Conference
Jag Vithanage and Ruwan De Silva
3 |3 |
Transport and Main Roads’ responsibilities include:
• Identifying and prioritising transport infrastructure needs for Queensland.
• Development and management of four-year Queensland Transport and Roads Investment Program (QTRIP) A$3.9b in year 2015–16.
• Leading the interface between the Queensland Government and the Australian Government for delivery of federally-funded transport projects.
• Managing and maintaining policies, systems and processes for effective program and project management delivery.
4 |4 |
Queensland Transport and Roads Investment Program (QTRIP) fundingbreakdown
QTRIP Funding 2015-
16 to 2018-19
2015-16 2016-17 2017-18 2018-19 Four year total
By entity: ($m) ($m) ($m) ($m) ($m)
Queensland Rail 763 559 391 444 2,159
Gold Coast Waterways Authority
9 - - - 9
Department of Transport and Main Roads
3,138 3,956 4,837 4,743 16,675
Total 3,911 4,516 5,228 5,188 18,843
5 |5 |
Transport and Main Roads in summaryTransport and Main Roads manages:
• State controlled road network of 33,343km.
• National Network roads of 5,017km.
• Other state-controlled – state strategic roads of 4086Km.
• Regional and district roads 24,243km.
• Busways in South East Queensland extending to 29km.
• Owns/maintain 3010 bridges, 3987 major culverts and 33 tunnels.
• Maritime infrastructure, cycleways and passenger transport system.
The department is the state's single largest physical asset owner with road network with a replacement value of $66 billion.
5
6 |6 |
Unit rate development methodology
• The department’s road network has been classified into 14
stereotypes and each stereotype corresponds to the appropriate
network standard.
• Stereotypical roads are combination of applicable design standard
and Model Road State.
• Work Breakdown Structure (WBS) has been developed for
corresponding stereotype.
• Work Breakdown Schedules (WBS) for 12 stereotypical roads with
variants for terrain, environment, CBR and region (quantities and
items) using first principles.
• Each WBS schedule include key elements of the corresponding
stereotype and cost estimates were prepared from first principles.
7 |7 |
Unit rate development methodology (continued)
• The unit rate costs data are developed using SmartCost database
and Expert Estimation tool.
• Five geographical cost regions in “SmartCost” provide the local
context of departmental road network upgrade costs.
• Contractors’ overhead and profit margin are applied based on the
corresponding stereotype.
• The department’s project management costs have been added to
the overhead costs as a percentage of the construction costs.
• Stereotype project costs are calculated based on 5km road length.
8 |8 |
How unit rates work
• Unit rates determines the gross value of the road network in $/m2 (per km).
• Costed WBS schedule items are allocated to relevant asset components such as earth works, pavement and surfacing.
• Total costs of each asset class divided from the area to derive unit rate for the correspondent asset class.
• Stereotypical approach provides robust resource based network replacement cost.
• The brownfield unit rates are to be applied for calculation of Residual Values.
• Bridge unit rates are derived from analysing data from recently completed projects.
8
9 |9 |
Unit rate stereotypes
CostingRegion
Soil Type
Environment
Terrain
Road stereotype
RenewalWork
schedules
StereotypeUnit Rate
Stereotype Description
0Unformed roads (to differentiate whether it is in a rural or urban road an 'R' or 'U' will be placed in front of the stereotype
Rural Roads
1 Unsealed roads2 Single carriageway <= 6.4m seal width constructed pre 1980
3 Single carriageway <= 6.4m seal width constructed post 19804 Single carriageway > 6.4m seal width constructed pre 19805 Single carriageway > 6.4m seal width constructed post 1980
6 Motorway sealed - typically upto 6 lanes7 Major motorway - 6 lanes or more
Urban Roads
8 Undivided carriageway less than 4 lanes
9 Undivided carriageway 4 lanes or more10 Divided carriageway 4 lanes or more non-motorway standard11 Motorway 4 to 6 lanes
12 Major motorway - 6 lanes or more
13 Busway
• Level
• Rolling
• Mountainous
• Wet (W)
• Dry (D)
• Central Coast (CC)
• Central Inland (CI)
• Southern Inland (SI)
• Southeast Qld (SQ)
• Tropical North (TN)
Stereotype example
1LDR-CC‘1’ = indicates that it is in rural area and is an
unsealed road‘L’ = in a level terrain‘D’ = in a dry environment‘R’ = soil is reactive‘CC’ = in Central Coast Region
• Resealing/Resurfacing
• Pavement Rehabilitation
• Road Reconstruction
• Complete New Road
• Reactive (R)
• Non-Reactive (NR)
10 |10 |
Stereotype road lengths
Stereotype ID Stereotype Code Total Segment Length Asset Owner
0 1
1 R01 4,285 TMR
2 R02 3,640 MR
3 R03 3,910 MR
4 R04 2,978 MR
5 R05 16,965 MR
6 R06 725 MR
7 R07 14 MR
7 R06 16 MR
8 U08 387 MR
9 U09 30 MR
10 U10 919 MR
11 U11 341 MR
12 U10 83 MR
12 U12 172 MR
13 U13 28 BUSWAY
Total 34494
11 |11 |
SmartCost regions
Central Inland (CI)
Southern Inland (SI)
Central Coast (CC)
South East Queensland
(SQ)
Tropical North (TN)
12 |12 |
Work Breakdown Structure (WBS)
Item Description Unit Quantity Unit Rate Amount Category
1001PRELIMINARY WORKS
1100CONTRACTOR'S SITE FACILITIES AND CAMP MRS28
1101site facilities Lsum 1.000 304,581.00 304,581 MISC
1002PROVISION FOR TRAFFIC MRS02
1200TRAFFIC MANAGEMENT MRS02
1201Provision for traffic (% of construction cost) LS 7.000 683,730.40 4,786,113 MISC
1003ENVIRONMENTAL MANAGEMENT MRS51
1311Provision for environmental management and planning (% of construction cost) LS 2.500 683,730.00 1,709,325 MISC
2001 DRAINAGE, RETAINING STRUCTURES AND PROTECTIVE TREATMENTS MRS03
2100 REMOVAL/DEMOLITION MRS03
2101 Removal or demolition of culverts, complete, 600ø, 300meters Lsum 1.000 18,842.00 18,842 Earth Works
2106 Removal or demolition of concrete kerb and channel including kerb crossings Item 1.000 18,636.00 18,636 Earth Works
2107 Removal or demolition of concrete slabs, 150mm Thickness Item 1.000 19,147.00 19,147 Earth Works
2108 Removal or demolition of gullies, >1.5m depth - <3m depth Item 1.000 19,719.00 19,719 Earth Works
2240SUPPLY AND INSTALLATION OF CULVERTS MRS03
2241.1Supply and installation of concrete pipe culvert components, Class 2, 450mm diameter -Green fields
m 4,987.200 364.64 1,818,533 Earth Works
2241.2Supply and installation of concrete pipe culvert components, Class 2, 525mm diameter -Green fields
m 3,410.400 412.18 1,405,699 Earth Works
2241.3Supply and installation of concrete pipe culvert components, Class 2, 600mm diameter -Green fields
m 1,020.000 500.82 510,836 Earth Works
2241.4Supply and installation of concrete pipe culvert components, Class 2, 750mm diameter -Green fields
m 26.400 721.58 19,050 Earth Works
2243.1 Supply and installation of concrete box culvert components, 1500mm x 1200mmm 100.800 1,942.00 195,754 Earth Works
14 |14 |
Validation of unit rates data
• Have a consistent WBS at multiple levels
• Stereotypes WBS align with current Transport and Main Roads’
specifications.
• Benchmarking with recent tender prices and completed projects.
• Expert panel with internal asset managers, engineers and regional
estimators validate final unit rates.
15 |15 |
Example unit rates
Unit rates for 2014 (S/m2)
WBS Earthworks Pavement Asphalt Surfacing10LWNR_CC 147.79 336.45 79.21
10LWNR_SI 148.63 338.11 79.46
10LWNR_SQ 144.54 328.59 77.47
10LWNR_TN 149.49 340.22 80.09
10LWR_CC 147.79 336.45 79.21
10LWR_SI 148.63 338.11 79.46
10LWR_SQ 144.54 328.59 77.47
10MWNR_SI 283.93 410.99 77.37
11LWNR_CC $460.91 $502.83 $92.44
11LWNR_SI $463.53 $505.31 $92.73
11LWNR_SQ $451.01 $491.67 $90.52
11LWNR_TN $466.12 $508.29 $93.51
11LWR_SQ $450.02 $491.79 $90.48
11MWNR_SI $980.30 $672.29 $101.16
11MWNR_SQ $953.33 $653.36 $98.63
11RWNR_SI $669.28 $637.02 $103.57
11RWNR_SQ $650.87 $619.08 $100.98
11RWR_SQ $649.44 $619.23 $100.93
• Costed WBS schedule items are allocated to relevant asset components such as earth works, pavement and surfacing.
16 |16 |
Bridge unit rates (from completed projects)
Type Construction CodeUnit Rate ($/m2) 2014/15
financial year
Standard Bridges
Box Girder $8,397
Girder/Beam $4,304
Deck Unit $5,920
Tunnels
Cut and Cover $10,945
Driven / Bored $12,022
Major Culverts All $3,940
Riverside Expressway Bridges All $15,431
Houghton Highway Girder/Beam - Houghton $6,299
17 |17 |
Summary
The benefits of developing stereotype unit rates in this manner:
• Provides robust resource-based estimates.
• Provides transparency in the method of costing development.
• Closer alignment with the department’s internal project estimating
processes.
• Data files can be reused.