Vijay Chauhan
Lead Developer & Compliance Tools Architect at HOS Calculator
Vijay is a seasoned full-stack compliance systems engineer specializing in safety operations, dynamic logistics calculation engines, and transportation regulations. Over the last decade, he has engineered mission-critical compliance tracking frameworks and mathematically-intensive calculators to help commercial drivers and safety managers navigate complex FMCSA Part 395 rules effortlessly.
Professional Philosophy
At HOS Calculator, Vijay is the chief structural engineer driving our suite of 40-50 modular compliance tools. His core philosophy centers on uncompromising mathematical precision and high-empathy interface design. Transport rules are not just text files in the Federal Register; they are continuous boundary limits that dictate how professional drivers earn a living and maintain highway safety.
By abstracting complex regulatory equations—such as the 14-hour duty window crossovers, the 30-minute mandatory rests, and the 70-hour rolling limits—into fast, responsive web-based algorithms, Vijay provides truck drivers with the exact compliance tracking tools they need to protect their CSA scores and prevent out-of-service violations.
Specialties & Competence
FMCSA Part 395 Compliance
Expert in deep Hours of Service mathematical clocks including 11H, 14H, 60/70H, and sleeper berth splits.
Siloed SEO Architectures
Expert in structuring high-density topical silo compliance networks that perform flawlessly on search engines.
Transportation Analytics
Developing logistics engines for per diem taxes, axle load weights, fuel optimization, and carrier metrics.
Next.js Full-Stack Systems
Developing lightning-fast, edge-rendered transportation and mathematical calculation engines.
Featured Calculators
Specialized compliance and operations tools designed and developed by Vijay
Hours of Service
HOS Hours Remaining
Calculate steering limits, mandatory rests, and shift end boundaries using live daily rules.
Safety Compliance
Load & Weight Calculators
Distribute commercial freight load weight evenly across steering and drive tractor axles.
Fleet Operations
Fuel Cost Per Mile
Track and project real fuel costs and consumption per trip mile to optimize routing budgets.
Financial Analytics
Earnings & Income
Project fleet carrier CPM payouts, owner-operator driver net profits, and tax deductions.