COMPARATIVE STATEMENT OF AVERAGE COST OF VARIOUS ITEMS OF WORK.

__________________________________________________________________________

| | | | |

| M. & | L. & | E.T., V.|Average. |

| O. R.R. | N. R.R. |& G. R.R.| |

|_________|_________|_________|_________|

| | | | |

Engines and tenders--per engine | $325.70 | $202.58 | $61.82 | $196.70 |

Pass., bag., and ex. cars--per car| 9.87 |[2] 5.81 | 4.73 | 6.80 |

Freight cars, per car | 4.40 |[3] 5.81 | 3.60 | 4.60 |

M. of W. cars, per car | 13.32 | 2.72 | 5.89 | 7.31 |

Track (inc. sidings bridges, | | | | |

etc.), per mile | 45.37 | 47.83 | 46.09 | 46.26 |

Track tools, per mile | 2.70 | 1.31 | 1.80 | 1.94 |

Temporary side tracks, per mile | 192.83 | | 305.44 | 249.13 |

|_________|_________|_________|_________|

Total per mile of track, inc. | | | | |

sidings | $113.68 | $100.67 | $ 79.06 | $ 97.80 |

__________________________________|_________|_________|_________|_________|

[Footnote 2: Expense not divided as between passenger and freight

cars.]

[Footnote 3: 3.5 per cent. passenger, baggage, and express cars,

96.5 per cent. freight cars.]

NOTE--Since the preparation of this paper the general manager of the

Norfolk & Western Railroad has kindly furnished the following items of

expense for that line:

___________________________________________________________________

| | | |

| No. | Cost. | Average |

| | | Cost. |

|_________|____________|_________|

| | | |

Engines and tenders | 95 | $37,730.00 | $397.16 |

Cars (all kinds) | 3,615 | 37,994.65 | 10.51 |

Track, miles (including sidings) | 597.5 | | |

Labor | | 25,296.96 | |

Tools and supplies | | 3,531.12 | |

Changing M. of W. equipment | | 813.13 | |

Switches | | 571.67 | |

Spikes | | 8,508.22 | |

| | ---------- | |

Total track | | $38,721,10 | 64.80 |

| | ========== | |

Total | |$114,445.75 |---------|

Total average cost per mile | | | $191.53 |

__________________________________|_________|____________|_________|

And the superintendent of the S.F. & W. R.R. has also furnished the

expenses for that road:

___________________________________________________________________

| | |

| No. | Average |

| | Cost. |

|__________|_________|

| | |

Engines and tenders | 75 | $76.31 |

Cars (passenger) | 95 | 4.67 |

Cars (freight) | 1,133 | 3.88 |

Track, including sidings | 601.76 | 44.49 |

______________________________________________|__________|_________|

Nothing was said about shop or other tools, storage tracks, or

changing of maintenance of way equipment.

COMPARATIVE STATEMENT OF AVERAGE COST OF

LABOR OF VARIOUS ITEMS OF WORK.

_________________________________________________________________

| M. & | L. & | E.T., V. | |

| O. R.R. | N. R.R.| & G. R.R.| Average|

|_________|________|__________|________|

| | | | |

Engines and tenders. | $170.88}| | {$45.71 | $108.29|

Pass., bag., and ex cars | 7.97}| Not | { 4.38 | 6.17|

Freight cars | 3.89}| divided| { 3.36 | 3.62|

M. of W. cars | 9.98}| | { 4.64 | 7.31|

Miles track (including | | | | |

sidings, bridges, etc.) | 32.57 | $34.31| 19.26 | 28.71|

Track tools, per mile | .30 | Not | .13 | .21|

Temporary tracks | 162.03 | divided| 265.40 | 213.71|

|_________|________|__________|________|

| | Not | | |

Total per mile of track | $70.38 | divided| $44.72 | $57.55|

__________________________|_________|________|__________|________|

COMPARATIVE STATEMENT OF AVERAGE COST OF

MATERIAL OF VARIOUS ITEMS OF WORK.

_________________________________________________________________

| M. & | L. & | E.T., V. | |

| O. R.R. | N. R.R.| & G. R.R.| Average|

|_________|________|__________|________|

| | | | |

Engines and tenders. | $154.82}| | { $16.11 | $85.46|

Pass., bag., and ex cars | 1.90}| Not | { .35 | 1.12|

Freight cars | .51}| divided| { .24 | .37|

M. of W. cars | 3.34}| | { 1.25 | 2.30|

Miles track (including | | | | |

sidings, bridges, etc.) | 12.80 | $13.02| 26.88 | 17.55|

Track tools, per mile | 2.40 | Not | 1.67 | 2.03|

Temporary tracks | 162.03 | divided| 40.04 | 101.03|

__________________________|_________|________|__________|________|

| | Not | | |

Total per mile of track | $43.30 | divided| $34.34 | $38.82|

__________________________|_________|________|__________|________|

SUMMARY OF STATEMENTS OF L.& N. AND E.T.,

V.& G. RAILWAYS.

The mileage changed of the L&N. and E.T., V.& G.

systems combined aggregates 3,622 miles.

The total cost of these two roads. $331,492.59

Or an average per mile of 91.52

Total miles changed was about 14,500 miles.

Which would give total cost, at same rate. $1,327,040

We should really add to this a large sum for the great number of new

locomotives which were purchased to replace old ones, that could not

be changed, except at large cost, and which, when done, would have

been light and undesirable.

Upon the basis of the work done upon the L. & N. and E.T., V. & G.

systems, which, combined, cover about one-fourth the mileage changed,

we have made the following estimates, which will, perhaps, convey a

better idea of the extent of the work than can be obtained in any

other way:

Miles of track changed, about 14,500

Locomotives changed, about 1,800

Cars (pass, and freight) changed, about 45,000

New axles used, about 9,000

New wheels used, about 20,000

Axles turned back, about 75,000

Wheels pressed on without turning axles, about 220,000

New brasses used, about 90,000

Kegs of spikes used, about 50,000

Cost of material used, about $600,000

Cost of labor, about 730,000

Total cost of work, about 1,330,000

Amount expended on equipment, about 650,000

Amount expended on track, about 680,000

Amount expended on track on day of change in labor, about 140,000

The work was done economically, and so quietly that the public hardly

realized it was in progress. To the casual observer it was an every

day transaction. It was, however, a work of great magnitude, requiring

much thought and mechanical ability.

That it was ably handled is evidenced by the uniform success attained,

the prompt changing at the agreed time, and the trifling inconvenience

to the public.--_Jour. Assn. Engineering Societies._

* * * * *

Scientific American Supplement, No. 623, December 10, 1887 · 第 11 / 34 题