Infrastructure Vibroacoustic Solutions
We help cities and large-scale infrastructure function quietly and efficiently by addressing noise and vibration at the source, path, and receiver. Our expertise spans metro and railway systems, airports, bridges, and urban corridors, providing solutions for track vibration isolation design, rail/highway noise barriers, terminal building/station architectural acoustics design, airport/urban city noise mapping and bridge vibration tuning. Every solution is engineered using numerical modeling and validated with field data from Class-I instruments.
Our services ensure that passengers, nearby communities, and sensitive structures are protected from unwanted noise and vibration. From baseline surveys and construction monitoring to operational optimization and long-term embedded sensing, TARANGAA’s approach is compliant with RDSO, DIN 4150-3, ISO 2631, FTA, and ICAO standards, making infrastructure safer, quieter, and globally benchmarked.
List of Consultancy Services
Track-Borne Vibration Mitigation & Design
- Track-soil-structure interaction modeling using FEM (ANSYS/COMSOL/ABAQUS) and BEM (LMS Virtual.Lab, COUSTYX)
- Ground-borne vibration prediction per DIN 4150-3 and FTA-Transit Noise and Vibration Manual
- Resilient rail fastening systems, under-sleeper pads, and ballast mats design validation
- Floating slab track (FST) design including elastomeric or steel-spring isolation
- Hybrid experimental–numerical analysis for vibration propagation through tunnels and viaducts
Construction & Operational Noise & Vibration Monitoring
- Baseline ambient noise/vibration surveys before construction
- Construction phase monitoring of TBM, piling, blasting-induced vibrations (ISO 2631-2, DIN 4150-3)
- Operational noise assessment post-commissioning: train pass-by, warning systems
- Building damage risk and vibration dose value (VDV) assessments for sensitive receptors
NEXT WAVE: Integration of wireless vibration sensors for real-time alerts with mobile dashboards
Station Acoustics & Vibration Evaluation
- FEM based structural modelling of station buildings, sensitive/historic buildings to study the impact of train induced vibration at sensitive locations.
- Reverberation time control using multi-frequency absorber design (validated by EASE/ODEON models)
- Speech intelligibility mapping and public address system tuning using STI/PESQ metrics
- Vibrational decoupling of platform slabs and wall panels
- Diagnostic walk-through with real-time handheld analyzers for platform vibration and noise hotspots
NEXT WAVE: Voice comfort mapping with subjective passenger response integrated in modeling
Rail Noise Barrier Design & Urban Integration
- Insertion loss design for barriers along curves, junctions, and crossings
- Prediction modeling using SoundPLAN & CadnaA with site-specific terrain and building geometry
- Special design for noise shadows and diffraction zones
- Material design for aesthetic + acoustic performance (polycarbonate, composite, steel-mass-loaded vinyl hybrids)
NEXT WAVE: Dual-purpose barrier design with solar harvesting and architectural cladding
Bridge & Elevated Corridor Dynamics
- Dynamic response of girders and piers under rail loading (moving mass + acceleration excitation)
- Mode-shape analysis for serviceability and resonance avoidance
- Joint dampers and tuned mass dampers (TMDs) deployment recommendation
NEXT WAVE: Vibration-energy harvesting feasibility modeling and retrofitting
Airport Runway, Terminal & Utility Systems Acoustics
- Airport Infrastructure – Comprehensive Acoustic and Vibration Design
Services: We provide end-to-end architectural acoustics and vibration mitigation solutions for critical airport infrastructure, including Terminal Buildings, Air Traffic Control (ATC) Towers, Concourses, Aircraft Maintenance Hangars, Central Utility Buildings (CUB), and Main Receiving Substations (MRS).
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Our services encompass:
Façade Acoustic Design: Optimized building envelope design for high transmission loss, accounting for aircraft noise and environmental exposure.
- Interior Sound Isolation: Partition and room enclosure design to ensure effective airborne and impact noise isolation between functional zones.
- HVAC & MEP Noise Control: Design of silencers, vibration isolators, duct lining, and layout optimization for mechanical systems to ensure compliance with noise criteria inside occupied spaces.
- Reverberation and Room Acoustics: Tailored reverberation control strategies using advanced simulation tools (EASE/ODEON) to enhance speech intelligibility and passenger comfort in public address zones, lounges, and concourses.
- Structural Vibration Isolation: Design of vibration isolation systems for sensitive zones (ATC tower, equipment rooms) to mitigate vibration from mechanical systems, generators, and ground-borne sources.
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Our expertise ensures acoustical comfort, regulatory compliance (ICAO Annex 16, FAA guidelines, local NBC/CPWD standards), and seamless integration with architectural and MEP disciplines.
- Low-frequency noise assessment from aircraft engine start-up and taxiing
- Vibration impact from baggage handling conveyors and HVAC equipment on control rooms
- Enclosure and duct silencer design for utility systems
- Reverberation control in large concourses for speech clarity and alarm system audibility
Real-Time Structural Response Analysis During Operation
- Train-track-structure measurements using MEMS & geophones + FEM correlation
- Combined rail-pier-soil vibration mapping with multi-axis acceleration
- Datalogger-based strain/vibration time histories for long-span viaducts under metro train movement
NEXT WAVE: Embedded Sensor Systems For Long-Term Infrastructure Health
- Embedded vibration monitoring for sleeper fatigue, expansion joints, track slab cracking
- 5G-enabled edge-node deployment for remote diagnostics
- Predictive analytics dashboards for operators and concessionaires
- Acoustic emission-based early warning for crack initiation
Supporting Facility: TARANGAA Capabilities
- Simulation Environment: ANSYS/ABAQUS/COMSOL Multiphysics, LMS Virtual.Lab, EASE, SoundPLAN
- Field Equipment: Wireless geophones, MEMS vibration loggers, 8/16/32-channel data loggers, binaural microphones, Sound intensity probes, Class -I Sound Level Meters, uniaxial and tri axial accelerometers, laser vibrometer etc.
- Compliances & Standards: RDSO/SPN/TC/370, DIN 4150-3, ISO 2631-2, ISO 3095, IRC 103:2022, FTA guidelines
- Training Modules: Rail vibration theory & mitigation design, site survey techniques, noise modeling for metro DPR teams