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IA3 Engineering Smart Pedestrian Crossing System - Coggle Diagram
IA3 Engineering Smart Pedestrian Crossing System
1.0 Problem and Context
Current issue
Fixed timed crossings inefficient
Unsafe during peak student movement
Congestion near Villanova College
Large groups crossing after sport
Location
Main Avenue and Eighth Avenue
Coorparoo
Adjacent to Langlands Park
Need for solution
Dynamic pedestrian response
Improved safety
Reduced waiting times
Better traffic management
Project requirements
Logic control technology
Mechanical system included
At least one moving component
Full scale virtual prototype
Performance testing required
2.0 Research and Investigation
Existing crossing systems
Audio tactile buttons
Pedestrian countdown timers
Scatter crossings
Smart traffic systems
Control technologies
Sensors
Infrared sensors
Cameras
Pressure pads
LiDAR
Microcontrollers
Arduino
Raspberry Pi
PLC systems
Mechanical systems
Retractable bollards
Rising barriers
Sliding gates
Warning arms
LED ground lighting
Engineering principles
Force distribution
Tension and compression
Load analysis
Motion systems
Reliability
Safety factor
Materials
Steel
Strong
Durable
Aluminium
Corrosion resistant
Lightweight
Plastic composites
Weather resistant
Rubber
Impact absorption
Environmental factors
Rain exposure
Heat and UV
Heavy pedestrian traffic
Vehicle interaction
3.0 Design Development
Design One
Retractable bollard system
Rises during pedestrian phase
Blocks vehicle access
Advantages
High safety
Clear visual warning
Disadvantages
Higher cost
Complex maintenance
Design Two
Automated swing gate system
Gates close traffic lane
Linked to traffic controller
Advantages
Simple movement
Clear pedestrian control
Disadvantages
Requires space
Potential impact damage
Design Three
Rising speed bump
Physically slows vehicles
Deploys during crossing phase
Advantages
Reduces vehicle speed
Simple mechanism
Disadvantages
Wear over time
Drainage concerns
4.0 Chosen Solution
Selected design
Smart retractable bollard crossing
Reason for selection
Best safety outcome
Reliable mechanism
Easy to identify
Works during large crowds
System operation
Sensors detect pedestrian volume
Logic controller activates crossing
Bollards rise
Traffic lights change red
Pedestrian phase activated
Bollards lower after cycle
Key components
Sensors
Linear actuators
Steel bollards
Control unit
Power supply
Emergency override
5.0 Engineering Analysis
Force analysis
Vehicle impact resistance
Load calculations
Compression forces
Motion analysis
Actuator movement
Speed of deployment
Response time
Reliability
Safety factor of 2
Weather resistance
Maintenance schedule
Material justification
Galvanised steel for durability
Rubber seals for waterproofing
Calculations
Force equations
Stress calculations
Power consumption
Traffic flow timing
6.0 Prototype Development
CAD modelling
Fusion 360
Onshape
SolidWorks
Prototype features
Full scale dimensions
Moving bollard animation
Traffic simulation
Testing
Destructive testing
Non-destructive testing
Load testing
Response timing
Data collection
Tables
Graphs
Photos
Screenshots
7.0 Evaluation
Success criteria
Improves pedestrian safety
Reduces congestion
Reliable operation
Durable materials
Cost effective
Prototype performance
Response speed
Safety effectiveness
Traffic efficiency
Limitations
Power dependence
Maintenance requirements
Initial installation cost
Refinements
Solar backup system
Faster sensors
Stronger actuator housing
8.0 Communication
Annotated sketches
Force diagrams
Circuit diagrams
Tables and graphs
CAD renders
Technical language
Referencing
9.0 Real World Application
School zones
Busy intersections
Sports precincts
Public transport crossings
Future smart city integration