English Welsh & Scottish Railway
FINANCIAL ANALYSIS OF TTCI TRACK MODELLING
PREPARED BY LEK CONSULTING LIMITED
INTRODUCTION
This presentation addresses the financial implications
of TTCI's engineering modelling, with respect to track maintenance
and renewal costs (ie, for ballast, rail and sleepers).
Five scenarios have been constructed which allow
comparison of track maintenance and renewal costs for different
track configurations and maintenance practices.
— the scenarios are used to illustrate
the degree of savings available to Railtrack through the adoption
of more cost efficient track practices (as found in the US).
Unit costs have been estimated based on UK practices
and adjusted to reflect the cost of higher quality materials for
certain scenarios (eg harder rail, high grade ballast).
The steady-state cost run rate in £ per
kGTM is calculated based on total lifecycle costs, ie, including
all relevant capital and operating expenditure.
DEFINITION OF TRACK SCENARIOS ANALYSED
| | Scenario 1
| Scenario 2 | Scenario 3
| Scenario 4 | Scenario 5
|
| Rail |
| |
| |
|
| —hardness | 248 BNH
| 248 BHN | 248 BHN
| 340 BHN | 340 BHN
|
| —weight | 110/113 lbs/yd1
| 110/113 lbs/yd1
| 110/113 lbs/yd1
| 132 lbs/yd | 132 lbs/yd
|
| —lube and grind | No
| No | Yes
| No | No
|
| Sleepers |
| |
| |
|
| —spacing | Wood 30" (20%)
Concrete 25.7" (80%)
| Wood 30" (20%)
Concrete 25.7" (80%)
| Wood 30" (20%)
Concrete 25.7" (80%)
| Wood 19" | Concrete 24"
|
| Ballast |
| |
| |
|
—tamping cycle
—grade |
Mixed network
Standard UK |
Freight network
Standard UK
| Freight network
Standard UK
| Freight network
High grade
| Freight network
High grade
|
| Description | Typical of UK network
| UK network for freight standards
| As Scenario 2 with lubrication and grinding
| Typical of US Class 1 Railroad
| UK freight network using US configuration
|
Note: 1 Engineering analysis assumes UK rail is split in the
following way: 110 lbs/yd (20 per cent), 113 lbs/yd (80 per cent).
Both types of rail are costed at the 113 lbs/yd rate.
Source: EWS, TTCI, LEK analysis.
Results from TTCI indicate that the adoption of US track materials
and freight standards would reduce track lifecycle costs by approximately
£2 per kGTM.
17 March 2000
| 
