Mortality on a highway and rail corridor through elephant habitat
A 24 km stretch of two-lane state highway and an adjoining broad-gauge railway line pass through about 90 sq km of elephant habitat in northern Chhattisgarh. In three years, 11 elephants have died: seven on the railway and four on the highway. Fourteen villages have reported crop raids and there have been two human deaths. The Forest Department has Rs 2 crore for the current financial year. The PWD has sanctioned four-laning of the highway on the existing alignment with box culverts of a standard design, and the railway has rejected a speed restriction on the ground of punctuality. Villagers have twice blocked the highway demanding solar fencing and immediate compensation; Rs 38 lakh of claims are pending, there is no early-warning system, and the National Green Tribunal has called for a status report.
1. Rank the possible interventions and propose how the Rs 2 crore should be split, with reasons for the ranking.
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Ranking principle. Elephant mortality is irreversible, so interventions that prevent deaths outrank those that merely reduce nuisance, and among the killing sites the railway accounts for 7 of 11 deaths and therefore earns the first rupee.
- Railway stretch, about Rs 60 lakh. Vegetation clearance in a 30 m strip, removal of water points and waste that attract elephants to the track, fixed watchmen with sirens at the identified crossing points for the high-risk months, and a formal proposal to the Railway Board for a notified speed restriction on the 8–10 km blackspot, backed by the mortality data. This is the cheapest way to convert a rejected demand into a documented one.
- Underpasses on the four-laning, about Rs 40 lakh. Retrofit design and construction of two to three wider, dry, vegetated underpasses at the actual crossing chainages rather than the standard culverts; this must be done before four-laning begins, because later retrofitting costs several times more.
- Community solar fencing, about Rs 45 lakh. Only on the village side of the corridor in the six worst-affected villages, with a village maintenance fund. Fencing that closes the corridor itself would worsen conflict; this is a design constraint, not an optional one.
- Early warning and rapid response, about Rs 25 lakh. SMS or app alerts from tracked herds and trained response teams; useful, but secondary to physical separation.
- Compensation and verification, about Rs 30 lakh. Clearing the Rs 38 lakh backlog with verified claims reduces retaliation and is the price of village cooperation; link it to joint verification rather than paying on demand.
Reasoning to record: the split follows mortality data first, irreversibility second, and cost per avoided death third, with fencing placed where it does not block movement.
2. How would you define and formalise the corridor boundary, and what conditions would you insist on for the four-laning clearance?
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Boundary definition. Use evidence, not a line drawn on a map: radio-collar or GPS fixes, dung transect surveys, and three years of crop-raid, mortality and sighting records geo-referenced to the crossing points. Delineate the corridor as a functional landscape area with a defined core and buffer, identify pinch points and seasonal bottlenecks, and check it against the village cadastral map, the working plan compartment map and the proposed four-laning alignment. Elephant corridors are administrative and planning instruments, not protected areas, so state that limitation clearly while recommending that the State Wildlife Board endorse the delineation and the district land-use plan incorporate it.
Process. Present the data to the gram sabhas of the 14 villages, the PWD and the railway, and record objections. A corridor notified without village consent will be violated daily and will not survive political scrutiny.
Conditions for the highway. Wider underpasses at the identified chainages with natural substrate and no lighting inside; no borrow pits, quarries or stockyards inside the corridor; no continuous fencing along the forest boundary that would funnel animals onto the road; construction restricted to non-monsoon and non-crop-raiding months where possible; a monitoring and compensation clause in the contract; and a commitment that the railway speed restriction request is pursued before traffic increases. Insist also that the four-laning clearance is tied to a corridor-level monitoring plan, not to a single culvert count.
3. What indicators would tell you in three years whether this package worked, and how would you restructure the compensation process so that it does not become a permanent drain?
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Indicators. (a) Elephant deaths on the railway and highway separately, with the target of zero on the railway stretch and a clear decline on the highway; (b) number of successful crossings recorded at each underpass through pugmark, camera and track data; (c) crop-raid incidents per village per season; (d) percentage of fences functional at surprise inspection, since a broken fence is worse than none; (e) average days taken to settle a verified claim; (f) number of retaliation incidents and of highway blockades. If railway deaths continue despite warnings and clearing, the conclusion is that soft measures are insufficient and a hard engineering fix or a statutory speed restriction must be escalated.
Compensation redesign. Move from a claim-and-pay model to a verified, formula-based one: joint verification by the patwari, the forest guard and a village-level committee within 72 hours; a published per-acre rate by crop stage; payment within 30 days through a single window; and a community component - for example a part of the pay-out routed to a village fund conditional on the village keeping the fence and the alert system running. Exclude claims filed after the crop is harvested, and cross-check repeat claimants against the raid records. The aim is to keep payment honest and predictable, so that it buys tolerance rather than rewarding repeated damage, while the physical measures progressively reduce the need for it.