CHAPTER 14. ECONOMIC ANALYSIS 14.1 INTRODUCTION Economic Analysis of an infrastructure project is undertaken to ascertain the importance and benefits of the project to the society at large. The road project has been proposed for improvement/widening in order to provide higher speeds as well as better riding quality to the traffic on this corridor. These improvements will result in reduction in the travel time as well as the vehicle operating costs of the passengers/cargo/vehicles. There is a cost attached to the improvements provided. These are the initial improvement cost, environmental and social cost as well as the maintenance cost which are anyway required to keep the improved facility in good condition. Since the infrastructure projects are social projects, it is important to justify its need from the perspective of the community. The present study envisages the use of following tools for undertaking economic analysis of the implementation of improvement proposals on the said project Corridor: IRC: SP-30 combined with updated Road User Cost Study RUCS-20011, hereafter referred as RUCS and Highway Development and Management model hereafter referred as HDM-42. Both the tools are independent in evaluation, though the approach to analysis is the same – ‘with and without project comparison’ – and also the input data is same. The RUCS VOC model in conjunction with IRC: SP-30 is developed for Indian conditions and hence cannot be adapted to other countries, whereas an HDM-4 (Version 1.3) model is designed to be used in a wide range of environments. Configuration of HDM-4 provides the facility to customize system operation to reflect the norms that are customary in the environment under study. Default data and calibration coefficients can be defined in a flexible manner to minimize the amount of data that must be changed for each application of HDM-4. 14.2 SECTIONING OF PROJECT CORRIDOR Taking into account the traffic homogeneous sections as identified in Chapter 4 and construction of bypasses and realignments along the project corridor, it has been divided into 9 sub sections for economic analysis. Details of these sections are given in Table 14-1 and Fig 14-1. For completeness of the bypass in the first section which begins from a junction on NH-8B, the 1 Updated Road User cost study, Final Report Volume-1 Traffic and Transportation Division, Central Road Research Institute, New Delhi 2001 2 HDM-4 is an analytical tool for engineering and economic assessment of road investments and maintenance. 14-1 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT section from km 111 to km 114.3 of NH-8B has been considered as a link which connects the old starting point (on the corridor) to new starting point on the corridor as shown in the figure below. Table 14-1: Details of Road Sections Traffic Sections Section 1: JetpurJunagadh (km 0.0-km 26.8) Section 2: JunagadhKeshod (km 26.8 – km 63.8) Section 3: Kshod-Gadu (km 63.8 - km 100.7) Section 4: GaduSomnath (km 100.7km 127) Corridor/ Sections Corridor: Jetpur-Somnath Sub section 1: Start point Proposed Jetpur Bypass to End Point of Jetpur By pass Sub section 2: Jetpur Bypass end point to start point of Proposed Junagadh Bypass 1( missing link) Sub section 3: Start point of Propsed Junagadh Bypass 1 (to missing link) to end of Junagadh Bypass 1 (Dhoraji Junction) Sub section 4: Start of Existing Junagadh Bypass 2 to end of Junagadh Bypass 2 at railway crossing Sub section 5: Start of realignment Junagadh Bypass 2 at railway crossing to end of realignment of junagadh bypass 2 Sub section 6: End of realignment of junagadh bypass 2 to Start of Keshod Bypass Sub section 7: Start of Keshod Bypass to End of Keshod Bypass Sub section 8: End of Keshod Bypass to Gadu NH 8E junction Sub section 9:Gadu NH 8E junction to Somnath Total Length of the Corridor Existing Chainage (kmkm) Length (Km) Design/Proposed Chainage(km-km) Length (Km) 0 7.36 7.36 0 4.76 5.533 7.36 25.35 18.0 4.76 23.3 18.54 25.35 26.63 1.28 23.3 25.12 1.82 26.63 34.00 7.37 25.12 32.4 7.28 34.00 43.10 9.10 32.4 40.6 8.2 43.10 65.98 22.88 40.6 63.6 23.0 65.98 79.48 13.50 63.6 75.0 11.4 79.48 101.9 22.43 75.0 97.15 22.15 101.9 127.6 25.70 97.15 122.73 25.58 127.60 123.49 3 The first section ends at km 4.76 and an additional 0.765km has been added as an approach of flyover. Thus the total section length sums to 5.53 km. 14-2 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT Figure 14-1: Sectioning of Project corridor for Economic analysis 14-3 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT 14.3 APPROACH AND METHODOLOGY A Life Cycle Analysis has been adopted to undertake the economic analysis of the proposed improvement project. The tangible benefits have been assessed following the approach of “without the project,” i.e.- the base case and “with the project” scenario. The benefits are: Savings in vehicle operating costs (VOC); Savings in travel time costs due to reduction in congestion and higher travel speeds as a result of improved roads/construction of bypasses- both in terms of capacity as well as riding quality; Savings in maintenance costs. Once the benefits are estimated, the investment made towards road improvement and construction of bypasses, along with the annual investments towards routine and periodic maintenance have been compared with it to arrive at the following indicators: i) Economic Internal Rate of Return (EIRR) ii) Net Present Value (NPV) iii) Net Present value to Cost Ratio (NPV/C) 14.4 CONSTRUCTION AND ANALYSIS PERIOD The analysis period is considered as 30 years including three years of construction period. It has been proposed that over this period of time, the existing 2-laned facility would be upgraded to 4lane divided carriageway with paved shoulders. The widening /construction works are expected to get initiated in 2010, and carry on till the end of 2012; therefore the construction cost phasing has been distributed as 30%, 40% and 30% over the stated three year period. 14.5 PROJECT COST The project improvement cost, at financial prices, has been estimated as presented in Table 14-2 below: Table 14-2: Details of Project Cost Sl. No. 1 2 3 4 5 Description of Item Construction Cost Estimation purpose (5% on Total Construction Cost) Contingency (3% on Total Construction Cost) Project Preparation and Supervision 3% (on construction cost an contingency) Total Contingencies Total Social, Environment Cost Total Project cost (excluding escalation)* Total Amount (in millions) 7197.66 359.88 215.93 233.204 809.02 3086.79 11093.46 * A conversion factor of 0.9 has been used to covert the financial prices to economic prices. 14-4 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT 14.6 COMMON INPUTS FOR RUCS AND HDM-4 14.6.1 Standard Conversion Factors In an economic analysis exercise the prices used are in economic terms. That is to say that all the distortions in prices relating to labour wages, capital market, transfer payments need to be corrected. For the purpose of economic analysis, financial prices have been converted to economic prices using a factor of 0.9, as recommended by the World Bank. 14.6.2 Unit Costs for Vehicles A unit cost database has been prepared for new vehicle price, replacement of tyres and tubes, petrol/diesel/engine oil, body-building costs of vehicles, etc. with the help of manufacturers, retailers and other similar sources. In order to convert these prices to economic ones, taxes and duties have been deducted, since they form transfer payments only. 14.6.3 Traffic data For each road section, traffic level is specified in terms of Average Annual Daily Traffic (AADT) flow. Traffic data has been derived from the primary surveys conducted by the consultants. A detailed analysis on derivation of section- wise traffic has been presented in Chapter 4. 14.6.4 Road Deterioration The rate of pavement deterioration is directly affected demand of certain level of traffic), together with the standards of maintenance applied to repair defects on raveling, potholes, etc., or to preserve the structural surface treatments, overlays, etc.). by the design of the pavement (to meet quality of construction followed by the the pavement surface such as cracking, integrity of the pavement (for example, The existing pavement roughness has been recorded during the primary survey, using ROMDAS. As a standard practice, in both `without project’ and ‘with project’ scenarios, periodic maintenance in the form of a 50 mm overlay has been assigned every fifth year of the project. Since the project involves capacity augmentation due to provision of a 4-lane facility in place of the existing 2-lane, it is likely that there will be a lower level of permissible deterioration in roughness in the ‘with project’ case as compared to the ‘without project’ case. While running the HDM-4 model for economic evaluation, the calibration to the road deterioration and work effects (RDWE) exercise has been carried out for the sensitive parameters, viz. (i) roughness-ageenvironment, (ii) cracking initiation, (iii) cracking progression and (iv) rut depth progression. While defining the improvement options, efforts have been made to calibrate the deterioration parameters with Consultant’s past experience elsewhere. Table 14-3 presents the deterioration parameters used in the model: 14-5 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT Table 14-3: Calibration Parameters for Pavement Deterioration Parameter Without project With project Initiation Progression Initiation Progression All Structural Cracking 0.8 Wide Structural Cracking 0.67 1.3 0.9 1.1 1.5 0.84 1.2 Transverse Thermal Cracking 0.84 1.2 1 1 Raveling 1 1 1 1 Pot Hole 1 1 1 1 Edge Break 1 1 Initial Densification 1 1 Structural Deterioration 1 1 Plastic Deformation 0 0 0.43 0.26 1 1 Roughness Env. Coefficient Roughness Progression The pavement deterioration figures, by each section of the existing corridor, in both ‘with’ and ‘without’ project scenarios, as estimated with the help of HDM, has been adopted for RUCS as well. 14.6.5 Road Network Information on road network has been obtained from field surveys. Table below presents the basic road network data used as input for undertaking the economic analysis of project corridor. In the given list of pavement types, only parameters like carriageway width, number of Lanes, rise and fall (m/Km) are used as inputs to RUCS whereas all the other pavement characteristics form input for HDM-4. Table 14-4: Details of Road Section Description Existing Pavement Type Average Carriageway width (m) Average Shoulder width(m) (eS) Number of Lanes Rise + Fall (m/Km) Altitude (m) Deflection (mm) Condition at end of year Roughness IRI (m/km) Total area of Cracking (%) Ravelling area (%) Number of Potholes (nos/ km) Edge Break area(m2/km) Mean rut depth (mm) Traffic Section-I Traffic SectionII Traffic SectionIII Asphalt Mix Over Granular Base 10 1 2 2 102 1 2008 4.73 29.15 27.15 4 25 10 Asphalt Mix Over Granular Base 10 1 2 5 100 1.1 2008 8.68 17.30 39.70 11 25 20 Asphalt Mix Over Granular Base 10 1 2 8 60 1 2008 10.85 15.51 42.63 6 25 15 Traffic Section-IV Asphalt Mix Over Granular Base 10 1 2 6 15 1.8 2008 7.36 22.85 54.63 5 25 20 14.6.6 Vehicle Fleet data Vehicle Operating Costs (VOC) is the major component of economic analysis. The primary inputs required by both RUCS and HDM, to estimate the VOCs, are the prices of vehicles, tyre, petrol, diesel, lubricants, crew cost, maintenance cost, vehicle utilization, and other vehicle fleet characteristics as given in Table 14-5. 14-6 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of Jetpur-Somnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT Table 14-5: Vehicle Fleet Data New Technology Car: Two Wheelers: Three Wheelers Utility Jeep: Base Type: Two Wheelers Autos Old tech Car Car medium PCSE 0.5 1 1 No. of Wheels: 2 3 No. of Axles: 2 Tyre Type: Standarad Bus Mini Bus: LCV: 2 Axle Truck: 3 Axle Truck: MAV (SemiArticulated): MAV (Articulated): Tractor: Bus Medium Std. Mini Bus Truck Light Truck Medium Truck Heavy Truck Heavy Truck Heavy Tractor: 1 1.2 1.2 1 1.3 1.4 1.5 1.5 1.8 4 4 6 4 4 6 10 14 14 4 2 2 2 2 2 2 2 3 4 4 2 Bias- Ply Bias- Ply Radial ply Radial ply Bias- Ply Bias- Ply Bias- Ply Bias- Ply Bias- Ply Bias- Ply Bias- Ply BiasPly Base number of Recaps: 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.3 Retread Cost (%): 15 15 15 15 20 15 15 15 15 15 15 15 Annual kilometer (Km): 19000 54000 54000 48200 167500 167500 71600 66900 66900 61000 61000 30000 Working Hours (hrs): 600 1800 1800 1200 4800 4800 2400 2200 2200 2400 2400 1200 Average Life (years): 10 12 15 15 15 8 12 15 15 10 10 12 Private Use (%): 100 10 10 90 0 0 0 0 0 0 0 100 Passengers (persons): 2 6 6 4 32 14 0 0 0 0 0 1 Work related passenger trips (%): 79 86.1 75.5 77.6 61.2 61.2 0 0 0 0 0 0 ESALF: 0 0 0 0 0.42 0.3 0.3 3.13 7.9 8.32 7.5 0.1 Operating weight (tons): 0.2 0.6 1.4 1.2 9 5 8 15 29 37 47 5 Vehicle Type: / Private Bus: Economic Unit Costs New Vehicle (Rs.): 28000 154000 288000 295000 1304000 1006500 457500 1274000 1635000 1823000 1823000 350000 Replacement Tyre (Rs. ): 820 500 1900 2000 11000 4600 4600 11000 11000 11000 11000 5400 Fuel (Rs per litre): 33 24 24 33 24 24 24 24 24 24 24 24 Lubricating oil (per litre) 120 120 120 120 120 120 120 120 120 120 120 120 14-7 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of Jetpur-Somnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 Vehicle Type: Two Wheelers: Three Wheelers Utility Jeep: New Technology Car: Standarad Bus / Private Bus: Mini Bus: LCV: MAIN REPORT 2 Axle Truck: 3 Axle Truck: MAV (SemiArticulated): MAV (Articulated): Tractor: Maintenance labour (Rs per hr): 6 3 4 8 6 3 3 4 4 4 4 4 Crew Wages (Rs per hr): 0 30 0 0 67 34 26 43 52 52 52 30 Annual over head: 4000 13000 25000 20000 175500 135500 109000 267000 300000 320000 320000 109000 Annual interest (%): 12 12 12 12 12 12 12 12 12 12 12 12 Passenger working time (Rs per passenger hr): 32.4 27.7 44.6 62.7 36.1 36.1 0 0 0 0 0 0 Passenger non working time(Rs per passenger hr): 2.2 2.3 4.3 5 3.5 3.5 0 0 0 0 0 0 Cargo (Rs per vehicle hr): 0 0 0 0 0 0 0.9 2.8 3.6 4 4 0.6 14-8 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT 14.6.7 Vehicle Operating Cost Vehicle operating cost (VOC) is a function of Speed, Road roughness, Carriageway, Width/Capacity, Rise and Fall. Per unit VOCs are calculated from the sum of distance related and time related VOCs, which include the following: Distance Related VOCs: Fuel Costs Maintenance Costs – including spare parts and labour Tyre Cost Oil Consumption cost Time-related VOCs Opportunity Cost of capital Depreciation Cost Cost of Crew The VOCs, in both the approaches, have been estimated using the respective equations. 14.6.8 Value of time Value of time of Passengers The value of time of passengers has been estimated for entire project corridor. The estimation of VOT is based on the data collected on purpose of trip by income category. This matrix gives an insight into the type of trips being performed by the users of the facility - higher the proportion of work trips, higher would be average value of time. The assumptions which have been made in estimation of the VOT are: The education trips have been assumed to be trips being performed by students, who do not earn; 50% of social and shopping trips have been assumed to be performed by the non-working people. Willingness to pay for saving time of the non-work trips, has been taken as 20% of wage rate; and The work trips are the trips being performed for work and business purposes, and the cost to the society is in terms of the wages being paid plus the overhead costs being incurred by the employer. The overhead costs have been taken as 20% of the wages. The above inputs have been used to estimate the VOT of passengers as presented in Table 14-6. Value of time of Goods in Transit Goods in transit cannot be put to any alternative use, therefore, they hold a cost to the society. This cost is equivalent to the opportunity cost of the value of goods, which is measured by the average rate of return on capital in a society. In India, it has been set at 12% per annum. The 14-9 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT value of goods in transit has been estimated for project corridor by each mode of goods’ vehicle, and has been presented in Table 14-6. Table 14-6: Value of time RUCS Modes Value of Time of Passengers (Rs./passenger hr) Sc/Mc Utility Jeep Car Mini Bus 3 -wheeler /Auto Standard Bus Deluxe Bus LCV/Tempo 2-Axle Truck HDM-4 Value of Commodity Time (Rs./veh. hr) 26 34 50 28 24 28 (81% of Utility Jeep (RUCS 1992)) 28 3-Axle Trucks M-axle Trucks Articulated M-axle Trucks Semi Articulated Tractor Passenger Work Passenger Non-work Cargo Holding/ Time /hour(Rs./passenger hour(Rs./veh. hour(Rs./passenger hr) hr) hr) 32.4 2.2 44.6 4.3 62.7 5 36.1 3.5 27.7 2.3 36.1 3.5 36.1 3.5 1.4 1.6 0.9 2.8 2.0 2.3 3.6 4 2.3 4 0.1 0.6 14.7 OTHER INPUTS FOR HDM-4 14.7.1 Configuration of model It is essential to configure the model to local conditions in HDM-4. The configuration of the model, therefore, includes Traffic flow pattern, Speed-Flow Type, Climatic Zone and Currency. i) Traffic Flow Pattern Traffic flow pattern configuration in the model includes defining of the hourly fluctuations in traffic over the total hours of a year (8760). There are four different kinds of traffic flow conditions namely, commuter, free-flow, inter-Urban and seasonal which are defined as defaults in the model. Seasonal traffic pattern has been selected for the project corridor. ii) Speed- Flow Type The project corridor, presently two lane, is envisaged to be of standard four-lane configuration in future. Speed-flow type, for the project has, therefore, been defined for two lane and four lane configuration with following parameters: 14-10 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT Table 14-7: Speed Flow Parameters Parameter Ultimate Capacity Free-Flow Capacity (Proportion at which freeflow condition Ceases) Nominal Capacity, at which speed of all vehicle converge to slowest Jam Speed Capacity (Traffic speed at ultimate capacity) RUCS Two Lane Four Lane 2500 PCU’s 9300 PCU’s /hr* /hr - HDM-4 Two Lane 1600 PCSE/Lane/Hr 0.2 Four Lane 2000 PCSE/Lane/Hr 0.1 - - 0.9 0.9 12 Kmph 15 Kmph 12 Kmph 15 Kmph *Note:-It is for peak hour traffic of 10% iii) Climatic Zone The data on climate has been used to configure the climatic zones along the project corridor The following table describes the climatic zone parameters: Table 14-8: Climatic Zones Parameters Parameter Moisture Classification Temperature Classification All sections Semi-Arid Tropical Mean Annual Temp 30oC Mean Monthly Temp Range 5oC Mean Monthly Rainfall, mm 50 Days Temp.>32 oC Dry Season of the year(fraction of year) 180 0.75 14.7.2 Maintenance Strategy and Cost Maintenance cost is normally incurred in two phases: Routine Maintenance and Periodic Maintenance4. The pavement deterioration model forms the base for identification of the years when the project corridor would require periodic maintenance (as the balance would be routine maintenance). The years in which periodic maintenance would be required, along with the maintenance strategy and the cost has been given in the Table 14-9. 4 Routine maintenance takes care of minor cracks on the pavement, by providing a scaling layer on it, whereas, the periodic maintenance is provided as a roughness corrective layer, which is comparatively thick. 14-11 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT Table 14-9: Maintenance Strategy and Cost Year Do minimum Type of maintenance strategy Project Scenario Do minimum Project Scenario Cost of Maintenance (Mill Rs/km) Do minimum Economic Financial Project Scenario Economic Financial Periodic Maintenance (Scheduled for every fifth year) 2009, 2018, 2014, 2023, 2019, 2028, 2024, 2033, Overlay with 25 mm BC Overlay with 50mm BC 153/m2 170/m2 306/m2 340/m2 2029, 2038, Patching Patching 75.6/m2 84/m2 75.6/m2 84/m2 Edge-repair Edge-repair 39.6/m2 44/m2 39.6/m2 44/m2 9000/km/yr 10000/km/yr 2034 Shoulder Repair 2039 Routine Maintenance (Scheduled for every year) All years other than Patching Patching stated above Routine Maintenance (Scheduled for every year) 126/m2 140/m2 126/m2 140/m2 Crack Sealing Crack Sealing 24/m2 27/m2 24/m2 27/m2 Shoulder Repair Shoulder Repair 9000/km/yr 10000/km/yr 9000/km/yr 10000/km/yr 14.8 PROPOSED IMPROVEMENT OPTIONS The improvement proposals on the entire project corridor have been studied for the purpose of Economic analysis. It comprises upgrading the project road from 2L road to 4LPS configuration. This improvement in width has been considered sufficient to cater to present and future traffic level. Further to this, two urban stretches, namely Jetpur bypass and Keshod, have been identified along this corridor as potential locations for bypasses. Site investigation shows that there is an existing bypass in Junagarh, which has been proposed for realignment. Based on the traffic demand, these bypasses have been proposed for 4LPS configuration. The details on the improvement options are given at Table 14-10. Table 14-10: Existing/Proposed Improvement of Road Works Jetpur Somnath Corridor Option Traffic Section-1 Traffic Section-2 Traffic Section-3 Without Project Scenario 2LPS With Project Scenario Upgraded to 4LPS, including construction of Jetpur construction and Bypass and Junagarh realignment of bypass 1(missing link) 2LPS, 2LPS Junagarh Bypass 2LPS Traffic Section-4 2LPS Upgraded 4LPS Upgraded to 4LPS, Upgraded to construction of 4LPS Keshod Bypass Junagarh Bypass 2 14-12 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT 14.9 RESULTS OF ECONOMIC ANALYSIS The economic analysis has been undertaken for the project road by using both, RUCS equations as well as the HDM-4 model. The results obtained are in terms of the Economic Internal Rate of Return (EIRR), and Net Present Value (NPV), as presented in Table 14-11 for the project corridor as a whole. Table 14-11: Result of Economic Analysis for 30 years RUCS Option HDM-4 NPV (in million Rs.) EIRR (in %) 3667 15.88 15678 26.34 Without Time With Time NPV (in million Rs.) EIRR (in %) 1609 13.64 The variation in RUCS and HDM-4 result is substantial. This is due to the fact that the RUCs equations are developed for Indian conditions, whereas the equations in HDM-4 model are calibrated for the same. For full calibration, enormous data is required, which is difficult to be made available in the course of the study of this nature. This lead to variation in the results. However, in both the cases, the project is viable with EIRR being greater that 12%. 14.10 SENSITIVITY ANALYSIS Any investment is subject to risks and uncertainties. All risks culminate into either increase in project cost, reduction in benefits or both put together. In order to cover the above stated risks, a detailed sensitivity analysis, with respect to the sensitive parameters, has been undertaken. The various sensitivity scenarios considered are as follows: Sensitivity 1: Base Costs plus 15% and Base Benefits (15% Increase in cost); Sensitivity 2: Base Costs and Base Benefits minus15% (15% reduction in benefits); and Sensitivity 3: Base Costs plus 15% and Base Benefits minus 15% (15% Increase in costs and 15% reduction in benefits). The results of the sensitivity analysis have been presented in Table 14-12 below. Table 14-12: Results of Sensitivity Analysis Option Without time With time Sensitivity Case RUCS NPV (in EIRR (in million %) Rs.) HDM-4 NPV (in million Rs.) EIRR (in %) Base Case 3667 15.88 Sensitivity 1 2430 14.31 Sensitivity 2 1873 14.07 Sensitivity 3 636 12.63 Base Case 15678 26.34 1609 13.64 Sensitivity 1 14441 23.91 389 12.36 Sensitivity 2 12082 23.55 801 12.90 Sensitivity 3 10845 21.35 (1001) 11.04 14-13 Final Feasibility-cum-Preliminary Design Report VOLUME I: Preparation of Feasibility– cum-Preliminary Design for 4/6 Laning of JetpurSomnath section of NH 8D, Package No: NHAI/DBFOII/DPR/02 MAIN REPORT The sensitivity analysis reflects project viability in the worst scenario, with use of both the approaches of economic analysis. 14.11 CONCLUSION AND RECOMMENDATIONS The road project, between Jetpur and Somnath is desirable from the society’s point of view. The project corridor as a whole is found to be economically viable with positive net present values and EIRR greater than 12%, even in the worst scenario of drop in benefits coupled with increase in cost. Hence, based on the above results, the project is recommended for immediate implementation. 14-14