MSME Registered · Eastern India

Field Survey
Sub-Consultancy
for DPR Projects

Accurate, TOR-compliant traffic, waterway and socio-economic survey data delivered for infrastructure planning projects across Eastern India — on time, every time.

Trivaha Engineering Services Logo
Trivaha
Engineering Services
NW-1
Noorpur to Sahibganj Corridor
3
Survey Verticals
4yr+
On-Field Experience on NW-1
25d
Typical Field Execution
TOR Compliant
72hr Mobilisation
MSME Registered
Operational Coverage
NW-1 — Noorpur to Sahibganj, West Bengal
NW-86 — West Bengal Inland Routes
Assam Waterways (NE India)
Highway DPR Corridors — WB, Assam, Odisha
Traffic Volume Counts · O-D Surveys · Jetty Passenger Surveys · Ro-Ro / Ro-Pax Studies · Socio-Economic Surveys · Stakeholder Consultations · Turning Movement Counts · DPR Field Support · Traffic Volume Counts · O-D Surveys · Jetty Passenger Surveys · Ro-Ro / Ro-Pax Studies · Socio-Economic Surveys · Stakeholder Consultations · Turning Movement Counts · DPR Field Support ·
What We Do

Three Survey Verticals.
One Reliable Partner.

Traffic Engineering
Field Surveys

Classified traffic counts, turning movement studies, O-D surveys, and speed/delay studies executed in compliance with IRC and MoRTH guidelines.

MTC / ATCC O-D Survey TMC Speed & Delay

Inland Waterway &
Terminal Surveys

Specialist surveys for jetty infrastructure DPRs — passenger traffic, vehicle/cargo enumeration, Ro-Ro/Ro-Pax demand studies, and boarding-alighting counts.

Jetty Traffic Ro-Ro / Ro-Pax IWAI DPR Terminal Activity

Environmental &
Social Field Surveys

Structured household surveys, stakeholder consultations, public consultation support, and socio-economic data collection for EIA/SIA components of DPRs.

Household Survey Stakeholder Consult SIA Support PAP Surveys
NW-1
Noorpur–Sahibganj Jetty Corridor, West Bengal
3
Specialist Survey Verticals
4yr+
On-Field Experience on NW-1 Corridor
100%
TOR & Government Guideline Compliance
Our Clients

Who We Work With

We engage exclusively as a sub-consultant field execution partner — integrating seamlessly into the project structures of prime consultants and government project authorities.

Engineering Consultants

Prime consultants engaged on government DPR and feasibility assignments requiring specialist field data.

DPR & Feasibility Teams

Project teams requiring structured field data in government-mandated formats for DPR preparation.

EPC Contractors

Construction firms requiring pre-construction traffic studies, environmental baseline surveys, or impact assessments.

Government & PSU Projects

Direct engagement with state PSUs and central authorities for field survey components on public infrastructure projects.

Resources

Capability Statement

Our two-page capability statement provides a structured summary of Trivaha's survey verticals, field experience, compliance standards, registration details, and engagement process — designed for prime consultant evaluation.

▸ Survey verticals with full sub-service listings
▸ Documented project experience — IWAI JMVP 2 & WBTIDCL
▸ 5-step survey methodology
▸ Firm registrations — Udyam, Trade Licence, GST
▸ How to engage us — step-by-step process

2 pages · PDF · June 2026

TES
Trivaha Engineering Services
Capability Statement · 2026
Survey Verticals 3
Corridor Experience NW-1, WB
Field Engagement 6+ Months
MSME / Udyam WB-15-0115693

Looking for a reliable field survey partner in Eastern India?

Send us your ToR or project brief. We respond within one working day.

About Us

Specialist Field Survey Partner
for Eastern India's Infrastructure

Trivaha Engineering Services is a survey and field-data support firm specialising in traffic, transport, and socio-economic studies required for infrastructure planning and DPR preparation. We assist consulting engineers and project authorities by delivering accurate, structured, and policy-compliant survey data.

Registration
MSME / Udyam
Structure
Partnership Firm
Geography
Eastern India
Sector Focus
Waterways & Highways
Our Role

What We Do — and What We Don't

Trivaha functions as a specialist field execution sub-consultant. We do not bid on government tenders directly. Instead, we integrate into the project structures of prime consultants as the dedicated field arm — delivering the ground-level survey data that DPRs are built on.

This focus means that every process, every format, and every team protocol is calibrated to one purpose: delivering TOR-compliant field data on time, in the structure the reporting team needs.

Our Focus Areas
Inland Waterways, Jetties & Ferry Terminals (NW-1, NW-86, NE Waterways)
National & State Highways — Traffic Engineering Studies
Urban Roads & Intersection Studies
Project Influence Area Socio-Economic Surveys
Environmental Baseline & Stakeholder Consultation Support
Flexible deployment to remote & difficult-access project locations
Our Approach

What Guides Us

01

TOR-First Execution

Every survey is scoped and executed with the project's Terms of Reference as the primary reference. Survey design, team structure, data formats, and reporting are all aligned to what the prime consultant and project authority require — not a standard template.

02

Regional Fluency

Eastern India presents distinct logistical challenges — tidal access, remote ghat locations, seasonal constraints. Our teams are built around this terrain, with enumerators who understand the geography and the communities they survey.

03

Data Integrity

Field data is only as good as the supervision behind it. Every survey team operates under a trained supervisor with daily quality checks. Data is compiled progressively — not rushed at deadline — to ensure the reporting team receives clean, usable outputs.

Credentials

Registrations & Compliance

Trivaha Engineering Services is a registered partnership firm with active MSME / Udyam status.

🏛️
Legal Structure
Registered Partnership Firm
🏭
MSME Status
Udyam Registered Enterprise
📋
Trade Licence
Active — Local Authority Registered
💼
Engagement Mode
Open for Sub-Consultant Engagements

Need a reliable field partner for your next DPR project?

Share your project scope or ToR and we will respond within one working day.

Our Services

Survey Services for
Infrastructure DPRs

All survey scopes are finalised strictly as per the project ToR. We deliver structured, government-compliant data — not generic survey reports.

Vertical 01

Traffic Engineering
Field Surveys

We conduct primary traffic data collection for highway, bridge, and intersection DPRs in formats compliant with IRC guidelines and MoRTH data requirements. All count data is collected by trained, supervised enumerators using structured data sheets — not estimates.

Compliance Standards
IRC Guidelines MoRTH Data Formats PCU Factor Tables Peak Hour Analysis
Classified Traffic Volume Count (MTC / ATCC)

Manual and assisted classified counts at key locations; vehicle-class wise; AM/PM peak capture; 7-day and 24-hour survey designs.

Turning Movement Count (TMC)

Multi-approach intersection counts; approach-wise vehicle classification; conflict point data for junction design.

Origin–Destination (O-D) Survey

Roadside interview methodology; trip purpose, origin zone, and destination zone data; matrix compilation for demand modelling.

Speed, Delay & Travel Time Survey

Moving-car observer method; spot speed studies; road segment delay analysis; travel time data for LOS assessment.

Jetty Passenger Traffic Survey

Boarding-alighting counts at existing jetty facilities; peak and off-peak period analysis; seasonality capture. Executed across 20+ ghat locations on the NW-1 corridor (Noorpur to Sahibganj) under IWAI and state PSU programmes — including tidal-access and remote riverine sites.

Ro-Ro / Ro-Pax Demand Survey

Vehicle and cargo enumeration at ferry crossing points; willingness-to-use structured interviews; O-D for waterway corridors.

Terminal Activity Survey

Operational pattern documentation at existing terminals; dwell time analysis; cargo type and volume estimation.

Hinterland Connectivity Survey

First / last mile transport mode survey at terminal approaches; pedestrian access pattern mapping.

Vertical 02

Inland Waterway &
Terminal Surveys

Our deepest area of specialisation. Trivaha has 4+ years of on-field experience across the entire NW-1 jetty corridor from Noorpur to Sahibganj, West Bengal — delivered across two separate government projects (IWAI JMVP 2 Arth Ganga and WBTIDCL Safety Action Plan). This gives us direct, ground-level understanding of tidal access constraints, ghat-level logistics, jetty survey operations, and IWAI data requirements that most survey firms do not have.

Programme Experience
IWAI — JMVP 2 (Arth Ganga) WBTIDCL Safety Action Plan NW-1 (WB) — Noorpur to Sahibganj 4+ Years On-Field Experience
Vertical 03

Environmental &
Social Field Surveys

Structured primary data collection for the environmental and social components of DPR assignments. We conduct household surveys, stakeholder mapping, and public consultation events following government consultation protocols and SIA/EIA ToR requirements.

Applicable Frameworks
SIA Framework EIA Guidelines R&R Policy PAP Survey Protocol
Household Socio-Economic Survey

Structured questionnaire-based interviews with project-affected household clusters; income, livelihood, and land-use data collection.

Stakeholder Consultation

Primary and secondary stakeholder identification, FGD facilitation, and consultation record documentation. Conducted with riverine communities, ferry operators, ghat workers, and local administration in and around the NW-1 corridor under government DPR programmes.

Public Consultation Support

Event coordination, minute documentation, objection/suggestion capture, and photographic documentation.

Market & Business Activity Survey

Commercial zone enumeration, trader interviews, and commodity flow data for project influence area assessment.

Have a ToR for one of these surveys?

Share it with us. We will respond with a scope and indicative timeline within one working day.

How We Work

Field Survey Methodology

A rigorous, repeatable process — calibrated to each project's ToR, not a generic template.

01
Step One

ToR Review & Survey Design

Before any field mobilisation, the project ToR is reviewed in full to extract the exact survey scope, data formats, sample sizes, and reporting requirements. A customised Field Survey Plan is prepared and agreed with the prime consultant.

ToR extraction — survey locations, count durations, vehicle classifications, sample sizes
Field Survey Plan (FSP) prepared — location-wise schedule, team allocation, data sheet design
Data format alignment — output tables structured to match reporting requirements
Logistics assessment — access constraints, tidal windows, local permissions
02
Step Two

Team Mobilisation & Pre-Survey Training

Enumerators and supervisors are recruited from or near the project area to reduce logistics cost and maximise local familiarity. A structured pre-survey briefing is conducted covering data quality standards, survey protocols, and data sheet completion.

Local enumerator recruitment and screening — literacy, attentiveness, availability
Structured pre-survey briefing with mock data sheet exercise
Supervisor-to-enumerator ratio maintained throughout field execution
Equipment and stationery pre-checked; contingency supplies arranged
03
Step Three

Supervised Field Execution

Field surveys are executed under continuous supervisory oversight. Data sheets are checked daily. Any gaps, inconsistencies, or access issues are flagged immediately — not discovered at compilation. The project manager remains reachable to the prime consultant throughout.

Daily supervisor review of completed data sheets before close-out
Parallel pair count checks for traffic survey quality validation
Photographic documentation of each survey station and count period
Daily progress updates to prime consultant's project manager
04
Step Four

Data Compilation & QC

Field data is compiled progressively — not in a single end-of-project rush. Each location's data is entered, checked, and cross-validated before the next location is compiled. Final outputs are formatted exactly to the prime's reporting requirements.

Progressive compilation — location-wise data entry concurrent with fieldwork
Cross-validation between parallel counts and supervisor checks
PCU computation, peak hour extraction, directional split analysis (traffic surveys)
Final data tables formatted to prime consultant's report template
05
Step Five

Delivery & Post-Submission Support

Compiled data is submitted to the prime consultant with a field summary note covering survey conditions, any deviations from the FSP, and QC documentation. We remain available for clarifications, reanalysis requests, or additional location surveys within the project period.

Structured data package — tables, summary note, and photographic evidence file
FSP deviation log where applicable
Available for one round of revision / clarification at no additional charge
Experience certificate / project reference issued on request after project close
Compliance Reference Standards

All surveys executed in compliance with applicable government guidelines

IRC Guidelines MoRTH Data Requirements IWAI Survey Protocols SIA Framework EIA Notification Requirements R&R Policy Data Standards Project-Specific ToR

Want to see how this applies to your project?

Share your ToR or project brief and we will outline a field execution plan.

Why Trivaha

What Makes Us the Right
Field Partner

Framed from the perspective of the prime consultant — because that is the question that matters.

The Prime Consultant's Actual Problem

"I need 10 days of traffic data from 8 locations in remote West Bengal and Assam — correct format, supervised, on time — and I cannot afford to manage 30 enumerators from my Delhi office."

That is exactly what Trivaha solves.

01

Eastern India Field Presence — Not Remote Management

Our teams are based in the project area, not dispatched from a metro office. This means lower logistics cost, faster mobilisation, and enumerators who understand the terrain, language, and community — critical for quality household and stakeholder surveys.

02

TOR-First — No Standard Templates

Every survey design begins with the project ToR, not a standard checklist. Data sheet formats, count durations, vehicle classifications, and reporting tables are customised to what the prime's report actually requires — reducing revision cycles after delivery.

03

Waterway Survey Specialisation

4+ years of on-field experience across the full NW-1 jetty corridor from Noorpur to Sahibganj, West Bengal — delivered across two government projects (IWAI JMVP 2 Arth Ganga and WBTIDCL Safety Action Plan). Jetty traffic surveys, boarding-alighting counts, and stakeholder consultations with riverine communities in and around NW-1 are core to our field record — not incidental assignments.

04

Government Project Experience

Trivaha's experience is anchored in government-funded infrastructure DPR projects — not corporate or private sector studies. Our enumerators, supervisors, and protocols are calibrated to the rigour and documentation standards that government project authorities expect.

05

Flexible, Multi-Location Deployment

We can deploy simultaneously across multiple locations within a project corridor — including remote, low-connectivity areas such as island communities, tidal ghats, and interior districts. 72-hour mobilisation from engagement confirmation is standard.

06

MSME-Registered Sub-Consultant

Trivaha's MSME status simplifies sub-consultant onboarding for prime consultants and project authorities. We issue proper invoices, maintain compliance documentation, and provide experience references on request — reducing administrative overhead for the prime.

What Primes Say

Structured Around Your Workflow

"Data delivered in the exact format we needed for the report. No reformatting required."

Prime Consultant — NW-1 DPR Project

"Field access to remote ghat locations that we couldn't have managed from our head office."

DPR Team — Inland Waterway Project, West Bengal

"Proactive updates throughout the field period. We always knew where the survey stood."

Project Manager — Government Infrastructure Programme

References available on request · Specific projects not disclosed without written authorisation

Ready to discuss your project's field requirements?

Share your project scope and we will outline a field execution proposal within one working day.

Contact Us

Get in Touch

Share your project requirements, ToR, or any questions about our survey services. We respond within one working day.

Reach Us

Trivaha Engineering
Services

We work as a field survey sub-consultant with prime engineering consultants and project authorities across Eastern India.

Base Location
West Bengal, Eastern India
Phone / WhatsApp
+91 94775 30135
Email
trivahaengineering@outlook.com
MSME Registration
Udyam Registered · UDYAM-WB-15-0115693

We respond to all enquiries within one working day

Send an Enquiry
Share your project requirements or ToR. All enquiries are treated in confidence.

✓

Thank you for your enquiry.

We will respond within one working day.