A brief on the productivity analysis done for the engaged contractors in a sector for electrical cable laying activity - which measures the work productivity and cost analysis as well. By doing this we arrest the critical activity easily by engaging right contractor based on their work performance/productivity and able to finish the activity within given time frame.

1. Package 2 / Sector 10

2. SEC – 10 LAYOUT

3. SECTOR – 10 WORK STATUS
 Total Scope: 125 kms (as per schedule)
 Actual Completion: 122.895 kms (as per site condition)
 Total No. of Plots: 484 No’s
 Total No. of Roads: 44 No’s (5294 mtrs)
 Road Handed over for Civil works: 5294 mtrs

4. CABLE LAYING
Activity Inclusive of:
 Marking – Plots Chainage / Trench
 Civil clearances, if any
 Excavation - Cable Trench
 Dewatering – Trench
 Logistics – Cable Drum Shifting
 Pre testing – Meggering of cable before laying
 Road Crossing - Hume Pipe laying
 Plot crossing - DWC pipe laying
 Cable Tagging
 Testing & endcap fixing

5. Cable Laying Duration: 74 days
1.85
5.05
0.46 0.00
18.17
20.67
18.51
21.47
12.39
15.27
8.96
0.00
5.00
10.00
15.00
20.00
25.00
Week
2
Week
3
Week
4
Week
1
Week
2
Week
3
Week
4
Week
1
Week
2
Week
3
Week
4
Week
1
Week
2
February-15 March-15 April-15 May-15
Sector 10 - Cable Laying Status
Cumm. Cable Laying Progress
Start date:
19th Feb 2015
End date: 4th
May 2015

6. Labour Engaged for Cable Laying
works
56 52
5 0
280
378
171
191 205
123
81
0
50
100
150
200
250
300
350
400
Week
2
Week
3
Week
4
Week
1
Week
2
Week
3
Week
4
Week
1
Week
2
Week
3
Week
4
Week
1
Week
2
February-15 March-15 April-15 May-15
Labour Histogram - Execution Stage
Total Mandays
No.ofLabours

7. Overall Productivity of Sector 10
Cable laying works
122.895
1,542.000
Cumm. Cable Laying Progress
Total Mandays
Total cable laid (in Kms):
122.895
Total Mandays: 1542
Activity duration: 74 days

8. Size Wise Actual Laid length
47.79
25.00
8.78 9.80
4.12
6.41 5.47
10.70
4.77
0.06
0.00
10.00
20.00
30.00
40.00
50.00
60.00
KM KM KM KM KM KM KM KM KM KM
3.5 c x
240
sqmm
4 c X 6
sqmm
4 c X 10
sqmm
4 c X 16
sqmm
3.5 c x 25
sqmm
3.5 c x 35
sqmm
3.5 c x 50
sqmm
3.5 c x 70
sqmm
3.5 c x 95
sqmm
3.5 c x
150
sqmm
InKilometers
Actual Laid length - Size wise
Total Laid length (kms) = 122.895

9. Executed Work Cost – Cable
13.38
1.25
0.53 0.69 0.41 0.90 1.09
2.35
1.10
0.01
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
3.5 c x
240
sqmm
4 c X 6
sqmm
4 c X 10
sqmm
4 c X 16
sqmm
3.5 c x
25
sqmm
3.5 c x
35
sqmm
3.5 c x
50
sqmm
3.5 c x
70
sqmm
3.5 c x
95
sqmm
3.5 c x
150
sqmm
COST(INR-Lakh)
Size wise - COST Executed
Total Cost (INR Lakh) = Rs. 21.69

10. Size Wise % Distribution – Sector 10
38.82%
20.22%7.10%
7.93%
3.33%
5.18%
4.42% 8.65%
3.86% 0.05%
3.5 c x 240 sqmm
4 c X 6 sqmm
4 c X 10 sqmm
4 c X 16 sqmm
3.5 c x 25 sqmm
3.5 c x 35 sqmm
3.5 c x 50 sqmm
3.5 c x 70 sqmm
3.5 c x 95 sqmm
3.5 c x 150 sqmm

11. Cost Analysis
 LOGISTICS
 Trailer: Rs. 5000 / day (Rental)
 No. of trips a day : 3
 Cost of per trip: 5000/3 = Rs. 1666.7
 Drums shifted 5*500 = 2500 mtrs
 Per mtr cost of trailer engaged = 2500/1666.7 = Rs. 1.5 / mtr
 Hydra: 8 Hrs X 1200 / hr = Rs. 9600 / day
 Drum shifted 15 * 500 = 7500 mtrs
 Per mtr cost of Hydra engaged = 7500/9600 = Rs. 0.80 / mtr
 MANPOWER / OUTSOURCE
Weighted Avg. per mtr cost = Rs. 15
Outsource = 48% of Rs. 15 for labors = Rs. 7.2 / mtr
Cost (Logistics) / mtr ₹ 3.00
Outsource / manpower ₹ 7.2
Total Cost ₹ 10.20
Cost of Cable Laying ₹ 15.00
Margin 32%

12. AGENCY1:
PREMIER PLANT & ENGG. LTD.
17.538
453
Progress Man days
Total cable laid (in Kms): 17.538
Total Mandays: 453

13. WEEK WISE CABLE LAYING PROGRESS
1.846
5.047
0.455
0
6.414
3.776
0
1
2
3
4
5
6
7
Week 2 Week 3 Week 4 Week 1 Week 2 Week 3 Week 4
Feb-15 Mar-15
M/s Premier Plant & Engineering Ltd.
Progress
InKilometers

14. WEEK WISE LABOUR ENGAGED
56 52
5 0
173 167
0
20
40
60
80
100
120
140
160
180
200
Week 2 Week 3 Week 4 Week 1 Week 2 Week 3 Week 4
Feb-15 Mar-15
Premier Total Man days
Man days
No.ofLabor

15. PRODUCTIVITY
 Total Kms laid: 17.538
 Total Mandays engaged: 453
 Productivity of each labor: 17.538/453 = 0.039 (kms)
 In mtrs = 0.039 x 1000= 39 (mtrs) / day (avg.)
 Therefore: productivity a of a labor x no. of labor engaged
 Note: Above calculation is done for 8 hr/day (std. working hrs)

16. AGENCY 2: N. GOVINDRAJ
78.316
836
Progress Mandays
Total cable laid (in Kms): 78.316
Total Mandays: 836

17. WEEK WISE CABLE LAYING PROGRESS
5.77
12.112
13.995
15.499
6.705
15.272
8.963
0
2
4
6
8
10
12
14
16
18
Week 2 Week 3 Week 4 Week 1 Week 2 Week 3 Week 4 Week 1 Week 2
March-15 April-15 May-15
M/s N. Govindraj Cable laid
Progress

18. WEEK WISE LABOR ENGAGED
73
127 135
155
142
123
81
0
20
40
60
80
100
120
140
160
180
Week 2 Week 3 Week 4 Week 1 Week 2 Week 3 Week 4 Week 1 Week 2
March-15 April-15 May-15
N.Govindraj Total Mandays
Mandays
No.ofLabor

19. PRODUCTIVITY
 Total Kms laid: 78.316
 Total Mandays engaged: 836
 Productivity of each labor: 78.316 / 836 = 0.094 (kms)
 In mtrs = 0.094 x 1000= 94 (mtrs) / day (avg.)
 Therefore: productivity a of a labor x no. of labor engaged
 Note: Above calculation is done for 8 hr/day (std. working hrs)

20. AGENCY 3: RAMESHWAR SINGH
26.946
253
Progress Mandays
Total cable laid (in Kms): 26.946
Total Mandays: 253

21. WEEK WISE CABLE LAYING PROGRESS
5.988
4.786 4.517
5.968 5.687
0
1
2
3
4
5
6
7
Week 2 Week 3 Week 4 Week 1 Week 2 Week 3 Week 4
Mar-15 Apr-15
M/s Rameshwar Singh
Progress

22. WEEK WISE LABOR ENGAGED
34
84
36 36
63
0
10
20
30
40
50
60
70
80
90
Week 2 Week 3 Week 4 Week 1 Week 2 Week 3 Week 4
Mar-15 Apr-15
Rameshwar Total Mandays
Mandays
No.ofLabor

23. PRODUCTIVITY
 Total Kms laid: 26.946
 Total Mandays engaged: 253
 Productivity of each labor: 26.946 / 253 = 0.107 (kms)
 In mtrs = 0.107 x 1000= 107 (mtrs) / day (avg.)
 Therefore: productivity a of a labor x no. of labor engaged
 Note: Above calculation is done for 8 hr/day (std. working hrs)

24. Constraint's
 Manpower : Holi festival (unavailability of labour in
2nd week of march for 7 – 10 days)
 Equipment: Tight schedule of Hydra, for shifting cable
drums

25. Turntable Utilization
 For sector 10:
 Total cable laid: 123 kms
 Duration: 74 days
 Avg. laying progress per day: 123 / 74 = 1.66 kms
 For a week = 1.66 x 7 = 11.63 kms (avg.)
 That’s equivalent to turntable efficiency

26. Avg. Turntable Efficiency
12.50 kms
(avg.)/ week

27. Agency Analysis
M/s. Premier Plant & Engg. Ltd.
 Unable to adapt the site condition (stringent in
nature)
 Unable to mobilize the manpower
 Unskilled supervisor
 Unable to engage Hydra
 Time: unavailability of supervisors at site in time

28. Agency Analysis
M/s. N. Govindraj
 Flexible and adaptive as per site condition
 Able to mobilize the materials (owned pick up van)
 Able to engage hydra
 Supervisor – 4 no’s – Easy to manage / easy to line up
activity, hard to maintain reconciliation
 Reliable to work with it
 Perfect Bell curve – for mobilizing manpower

29. Agency Analysis
 M/s. Rameshwar Singh
 Engage low manpower
 Only One supervisor – hence easy for reconciliation,
delay in managing site.
 Less reliable as compared to N. Govindraj
 Lost interest at the end of the project
References: Daily Labor report, Time office

30. THANK YOU