🚛
HaulTrack Telematics
Interactive Engineering Demo · Case Study No. 19 (1,800 Trucks)
GitHub Repo
Student: Vedh Naik (Roll: 150096725163)
Cohort: Jensen Huang · B.Tech CSE (SEPM)
Test Cases:
⚙️ Telematics Trip Parameters
Downhill Gradient Band 9.0% (Ghat Descent)
Braking Deceleration (Net Decel) 3.5 m/s²
Braking Event Count 11 events
Trip / Window Distance 60 km
Speeding % (q) 0%
Idling % (z) 0%
Enforce 28-Day Window (Min 500 km)
Unknown Gradient Distance 0% (limit: 5%)
⚖️ Safety Score Comparison
HaulTrack (New)
100.0
RATED · FAIR
Active Threshold: 4.0 m/s²
Counted Harsh Brakes: 0
Braking
0.0
Speed
0.0
Idle
0.0
Safe downhill descent recognized! Braking at 3.5 m/s² on a 9% gradient is within the safe 4.0 m/s² limit. Zero unfair penalty.
Legacy Vendor (Abandoned)
50.0
PENALIZED (-50 pts)
Fixed Flat Threshold: 3.0 m/s²
Counted Harsh Brakes: 11
Braking
50.0
Speed
0.0
Idle
0.0
Requirements Failure: Flat 3.0 m/s² threshold penalizes unavoidable descent control, slashing driver score from 100 to 50!
💡 Key Technical Insight: Score = 100 − (B + S + I). Downhill gradient thresholds: <2% = 3.0, 2–<5% = 3.3, 5–<8% = 3.6, ≥8% = 4.0 m/s².
🗺️ Telematics Route Corridor Simulator
Planned Route Line
500m Safe Corridor
Truck Position
Truck Distance from Corridor Center 0 m (Inside Corridor)
🚨 State Machine & Exemption Rules
Current Status
ON_ROUTE
Truck within 500m safe buffer
Consecutive Off-Corridor
0 / 3
3 valid ticks (90s) → NOTICE
Contextual Suppressions (Exemptions):
Depot Geofence
Planned Stop
Active Road Closure
Dispatcher Reroute
Invalid GPS (HDOP > 5)
12:00:00 ON_ROUTE Truck #1042 initialized within planned corridor (0m).
🔐 Access Policy Evaluation Engine

Enforces the negotiated Data Use Policy agreed between Drivers' Union, Fleet Management, and Insurer.

Quick Scenarios:
📜 Authorization Verdict & Audit Log
Policy Decision DENIED
Disciplinary Export Strictly Prohibited
Under the HaulTrack Data Use Policy agreed with the union, driver safety scores are advisory coaching instruments and can NEVER serve as the basis for disciplinary action or termination.
Append-Only Tamper-Evident Audit Log:
12:00:00 DENIED Actor 'fleet_mgr_sharma' attempt EXPORT_DISCIPLINARY blocked.
Active Trucks
1,800
Commercial Heavy Vehicles
Daily Telemetry Ingestion
5,184,000
Records / day (60 records / sec)
Telemetry Frequency
30 s
Per-truck reporting tick
COCOMO Effort
239 PM
17 months (44 KLOC semi-detached)
⏳ Automated Data Retention Lifecycle (PE-04)

Balance insurer evidence requirements with driver privacy preservation using automated tier transitions:

Tier 1: Raw Telemetry
90 Days
High-frequency 30s records (GPS coordinates, speed, acceleration) purged permanently after 90 days.
Tier 2: Identified Events
13 Months
Driver-linked event records irreversibly pseudonymized (driver ID stripped) after 13 months.
Tier 3: Pseudonymised Aggregates
36 Months
Fleet-level quarterly harsh-braking aggregates retained for 3 years to prove risk reduction to insurer.
📚 Official Course Deliverables & Academic Documentation

Complete set of SEPM (Software Engineering & Project Management) engineering documentation for Case Study No. 19 (HaulTrack). All deliverables are tracked and available in the GitHub repository.

Deliverable #1 · 16 KB PDF

Stakeholder Conflict Analysis

Stakeholder register across Fleet Manager, Union, and Insurer; gate & weighted scoring prioritization; 6 resolution decisions; and measurable terrain requirements TN-1 through TN-7.

Deliverable #2 · 8 KB PDF

Estimation Report

Intermediate COCOMO sizing for 44 KLOC semi-detached system (239.0 PM, 17.0 calendar months, 14 FTE average) with detailed justification for all 15 cost drivers (EAF = 1.15).

Deliverable #3 · 895 KB PDF

Design Pack

Ingestion throughput architecture (5.18M records/day), pipeline sequence diagram, domain class diagram, terrain normalization math, and route deviation state machine.

Deliverable #4 · 13 KB PDF

Test Design

IEEE 829 test specifications for terrain scoring (ST-01..17), route deviation tracking (RD-01..16), hill route regression (HR-01..05), and data policy enforcement (PE-01..06).

Deliverable #5 · 388 KB PDF

Project Plan

Complete Work Breakdown Structure (WBS), 74-week Gantt chart, communication plan across stakeholder groups, risk matrix, and union concern mitigation strategy.

Deliverable #6 · 11 KB PDF

Data Use Policy

Comprehensive data governance policy detailing 3-tier retention lifecycle, permitted coaching use, strict prohibitions on disciplinary dismissal, appeals process, and union oversight.