Table 1 Internet of things applications for next-generation construction sites.

From: Internet of things (IoT) for safety and efficiency in construction building site operations

Factor

Monitoring technology

Key data points

Benefits

Challenges

Metrics

Use Cases

Value drivers

References

Worker Safety

Smart helmets, wearables

Health metrics, fatigue, hazards

Injury prevention, risk alerts

Adoption, cost

Incident rates, unsafe behaviors

Gas alerts, fall detection

Reduced injuries, insurance

52,53

Worker Productivity

Handheld devices, AR/VR

Work quality, training needs

Enhanced tracking, training

Learning curve, adoption

Work volumes, rework rates

Workflow instructions, 3D visualization

Optimized labor, quality

54,55

Worker Location

GPS, BLE beacons

Movement, proximity alerts

Coordinate workers, avoid accidents

Privacy concerns, failures

Utilization rates, transit times

Proximity alerts, location visualization

Efficient workflows, space utilization

56,57

Equipment Location

GPS, RFID tags

Real-time location, zones

Optimize routes, prevent collisions

Interference, power

Downtime, transit and wait times

Traffic coordination, geofencing

Reduced damage, efficient use

58,59

Equipment Usage

Sensors, meters

Load, runtime, diagnostics

Predictive maintenance, reduce failures

Installation, data management

Sensor trends, abnormal events

Condition monitoring, utilization patterns

Lower maintenance costs, uptime

60,61

Vehicle Location

GPS, proximity sensors

Location, speed, proximity

Avoid collisions, optimize traffic

Cost, data integration

Accident rates, traffic violations

Automated dispatch, congestion alerts

Improved safety, fuel savings

62,63

Structural Health

Thermal cameras, lidar, gauges

Cracks, deformation, stresses

Early failure detection, prevent collapses

Technology limits, expert analysis

Crack growth, deformation trends

Walls, foundations, temporary structures

Avoid failures, quality

64,65

Gas Detection

Air quality sensors

Methane, CO, VOCs

Prevent explosions, leakage incidents

Maintenance, calibration

Gas concentration trends

Fuel storage, underground work

Compliance, worker safety

66,67

Noise Levels

Sound sensors, microphones

Decibel levels, frequencies

Prevent hearing damage, noise control

Interference, placement

Time over exposure limits

High noise areas, equipment

Compliance, health

68,69

Air Quality

Particle sensors

PM2.5/PM10, dust

Protect worker health, reduce hazards

Sensor reliability, accuracy

Pollutant concentration trends

Material storage, mixing stations

Compliance, health

70,71

Weather Tracking

Anemometers, humidity sensors

Wind, precipitation, visibility

Plan for weather disruptions

Costs, data integration

Work stoppages, weather delays

Wind-sensitive tasks, concrete curing

Avoid weather delays

72,73

Project Quality

Scanners, photogrammetry

Model validation, progress metrics

Ensure specifications met, identify defects

Expert analysis, data volume

Defect rates, rework rates

Structural inspection, progress tracking

Prevent rework, meet specifications

74,75

Data Security

Encryption, access controls

Protect against data theft, manipulation

Ensure safety, prevent fraud

Complex systems, auditing

Unauthorized access events, anomalies

Sensor data, personal information

Privacy, data integrity

76,77

Data Integration

APIs, standard protocols

Aggregate data across systems

Unified insights and analytics

Interoperability, legacy systems

Data coverage, gaps

Centralized analytics, visualizations

Improved decisions, automation

78,79

Compliance

Checklists, sensor data as proof

Adhere to regulations, demonstrate compliance

Avoid fines, business continuity

Manual effort, unclear requirements

Audit results, noncompliance events

Emissions, worker exposure levels

Avoid fines, prosecutions

80,81

Sustainability

Energy, water, waste sensors

Resource usage, carbon emissions

Improve environmental impact

Costs, data management

Energy/water/waste usage, carbon emissions

Equipment utilization, material sourcing

Meet certification goals, stewardship

82,83

Materials Management

Barcodes, RFID

Materials tracking, inventory

Improve supply chain visibility

Costs, adoption across supply chain

Stockouts, wastage

Delivery tracking, inventory management

Optimal material flow, minimized waste

84,85

Schedule Management

Work progress sensors, video analytics

Construction progress metrics

Identify delays, optimize schedules

Technology limitations, manual oversight still required

Schedule variance, milestone achievement rates

Automated punch list, work sequencing

On-time delivery, cost control

86,87

Automated Reporting

Wearables, equipment sensors

Activity tracking, output metrics

Automate paper/spreadsheet reporting

Adoption, ensuring data validity

Time savings, report automation rates

Daily logs, sensor-generated reports

Accelerated and consistent reporting

88,89

Remote Operations

Cameras, sensors, wearables

Site monitoring, controlling equipment remotely

Continue work during crises, harsh conditions

Legal limitations, tasks not suited for remote work

Percentage of work done remotely

Hazardous tasks, controlling machinery

Improved safety, continuity

90,91