IFLAS® Inter-floor Vehicle Exit Alert System

Floor-to-Floor Linkage · Intelligent Guidance · Zero Risk for Ramp Passing

【Product Overview】

The IFLAS® Inter-floor Linkage Alert System (IFLAS) is an intelligent lane safety solution designed specifically for multi-level parking garages, underground parking facilities, single-lane two-way ramps, and sloped passing areas.By combining high-precision radar vehicle detection technology with real-time inter-floor linkage control logic, IFLAS proactively activates warning signals and traffic control before vehicles enter ramps or blind-spot areas. This effectively reduces collision risks caused by limited visibility, curved ramps, and opposing up/down traffic, significantly enhancing overall parking safety.

【Key Features】

Inter-floor Bi-directional Linkage
When a vehicle is detected entering a lane or ramp on any floor, the system instantly synchronizes with upper and lower floors, automatically triggering traffic lights or high-intensity warning beacons to prevent opposing vehicles from entering.

Predictive Active Lane Warning
The system provides drivers with a clear visual alert indicating “Vehicle Approaching Ahead.” For example, when a vehicle is ascending from a lower level, warning lights on the upper level immediately switch to red or flashing alerts, reminding descending drivers to slow down or yield—greatly reducing head-on collision risks.

Intelligent Detection Logic
Equipped with directional radar vehicle detectors, IFLAS accurately identifies vehicle movement direction and object size, effectively eliminating false triggers and ensuring highly reliable alerts.

All-Weather Protection
Whether in low-light underground garages, semi-outdoor parking areas, or busy peak hours, the system operates reliably without being affected by lighting conditions, dust, rain, or underground environments—significantly reducing ramp passing accidents.

Stable 24/7 Operation

  • Independent control for each floor, no mutual interference
  • Dual-direction countdown displays to reduce driver waiting anxiety
  • Single device failure does not compromise overall system safety

Solution 1｜Dual-Lane Two-Way Traffic Safety Control

This solution integrates radar vehicle detectors with programmable time controllers to manage inter-floor traffic signals and improve driving safety.
System Operation:

  1. When a vehicle enters the radar detection zone in a specific direction, the programmable controller activates a red light (or flashing beacon with buzzer).
  2. Once the countdown ends, the red light is automatically turned off and switches to green, allowing passage.
  3. If another vehicle in the same direction is detected during the countdown, the timer resets automatically.

Each floor operates independently to prevent system-wide disruption due to a single controller failure.

System Flowchart

Solution 2｜Single-Lane Two-Way Intelligent Anti-Collision System

This solution uses directional radar vehicle detectors combined with a Programmable Logic Controller (PLC) to intelligently manage traffic signals for single-lane, two-way inter-floor ramps.
Key Capabilities:

  • Real-time lane occupancy detection
  • Automatic switching to one-way traffic mode
  • Configurable maximum continuous passage time to prevent long waits
  • Balanced safety and traffic efficiency

Effectively prevents head-on collisions, wrong-way entry, and inter-floor traffic conflicts.

Operating Scenarios

Scenario 1: Lane Empty (Alternating Signal Mode)

  • When no vehicle is detected, entry signals at B1 and B2 alternate.
  • Red/green intervals can be set to 5, 10, or 15 seconds.
  • Opposite signal display is recommended to avoid simultaneous entry at transition points.

Scenario 2: B1 Green Light with Vehicle Entry

  • B1: Green light + “Proceed”
  • B2: Red light + “Do Not Enter”
  • Lane enters one-way operation to prevent opposing traffic.

Scenario 3: Single Vehicle Passage at B1

  • No additional detection within 10 seconds after entry.
  • System determines lane is clearing and switches B1 to red.
  • Returns to alternating signal mode.

※ 10 seconds = average passing time + 2 seconds safety buffer.

Scenario 4: Continuous Vehicle Entry at B1

  • When a vehicle behind continuously triggers radar detection during the B1 green light period:
    • Each detection resets a 10-second green timer.
  • Continuous entry is allowed.Maximum continuous passage is limited to 3 minutes to avoid excessive waiting on the opposite side.

Scenario 5: Continuous Passage Reaches 3 Minutes

  • Continuous Passage Reaches 3 Minutes：
    • B1 switches to red with “Do Not Enter.”
  • B2 turns green 10 seconds after the last B1 detection.
  • If the lane is empty, the system returns to alternating signal mode.

System Flowchart

Solution 3｜Peak-Hour Intelligent Traffic Flow Management

Eliminate Congestion and Waiting Anxiety

【Overview】

For large enterprises facing congestion during off-work peak hours when multiple floors exit simultaneously, Tian-Lin Technology offers a time-based traffic control solution. Through automated scheduling and fair access mechanisms, the system ensures orderly vehicle exit across all floors.

【Operation Flow】

  1. Schedule Activation: Automatically enabled during preset peak hours (e.g., weekdays at 5:00 PM), defining passage time for each floor.
  2. Clear Guidance: The active floor displays a green light, while others show red lights with countdown timers to ease driver anxiety.
  3. Cyclic Switching: Passage rights rotate automatically based on the preset schedule.
  4. Auto Reset: After peak hours, the system returns to normal operation.

System Flowchart

Successful Smart Parking Management Cases

Case 1: AI Smart Building

Wistron Zhubei Smart Building implemented i-View Technology’s dual-identification parking management system, managing approximately 950 car spaces and 980 motorcycle spaces.
By integrating IFLAS and peak-hour traffic management, the system safely handles thousands of daily vehicle movements, significantly improving parking safety and operational efficiency with 24/7 stable operation.

Case 2: Office & Factory Building

EXCELLENCE OPTO. INC.( EOI), a publicly listed company and global LED traffic signal manufacturer, introduced IFLAS in its four-level parking facility. Despite dual-lane two-way design, high floor clearance, large curves, and steep ramps posed safety challenges.
IFLAS strengthened inter-floor traffic control, effectively reducing collision risks during peak hours.

Case 3: Luxury Clubhouse Building

Located in Taipei, the Hong-Yao Building features five underground levels with single-lane two-way ramps.By deploying IFLAS, vehicle entry and exit across floors are synchronously controlled, preventing collision risks and significantly enhancing parking safety.

Additional Installations

In addition to the cases above, i-View ParkGuide® Smart Parking Management System has been successfully deployed in numerous renowned corporations and public institutions, including MediaTek, ASE Group, SPIL (Siliconware Precision Industries), LianYa Optoelectronics, and Alishan National Forest Recreation Area, among others.

FAQ

Q1: What is the IFLAS Inter-floor Vehicle Exit Alert System?
IFLAS is an intelligent lane safety system designed for multi-level and underground parking facilities. It uses radar vehicle detection and real-time inter-floor linkage to proactively activate warning signals before vehicles enter ramps, preventing collisions.

Q2: Where is IFLAS suitable for installation?

  • Underground parking garages
  • Multi-level parking structures
  • Single-lane two-way ramps
  • Curved or low-visibility ramp areas
  • Corporate campuses, tech parks, commercial buildings, hotels, and luxury residences

Q3: How does IFLAS reduce collision risks?
Before vehicles enter a ramp, drivers receive visual alerts indicating oncoming traffic, while other floors are simultaneously restricted—allowing drivers to slow down or wait safely.

Q4: How is IFLAS different from conventional warning lights?
Unlike single-point warning lights, IFLAS features:

  • Inter-floor linkage control
  • Directional radar vehicle detection
  • Countdown timers and traffic logic management
  • Modular independent control architecture

It is a proactive traffic safety management system, not just a warning device.

Q5: Is the system prone to false triggers?
No. High-sensitivity directional radar accurately identifies vehicle direction and size, minimizing false detections caused by pedestrians or environmental interference.

Q6: Can the system operate in low-light underground environments?
Yes. IFLAS does not rely on cameras and is unaffected by lighting, shadows, dust, or humidity—ideal for underground and 24/7 operation.

Q7: Will a failure on one floor affect the entire system?
No. Each floor operates independently, ensuring that a single device failure does not impact overall parking safety.

Q8: Does IFLAS support single-lane two-way traffic?
Yes. The system includes intelligent logic for single-lane two-way ramps, automatically controlling direction, limiting opposing entry, and managing maximum continuous passage time.

Q9: Can IFLAS help reduce congestion during peak hours?
Yes. By integrating peak-hour traffic flow management, IFLAS fairly allocates passage rights among floors, significantly reducing congestion and waiting anxiety.

Q10: Can IFLAS integrate with existing parking systems?
Yes. It can integrate with:

  • parking lot management system
  • Traffic lights
  • Message displays / countdown indicators
  • ParkGuide® parking systems

No full system replacement is required.

Q11: Does installation require major construction?
No. With a modular design and no trenching required, installation is fast and minimally disruptive—ideal for both new projects and retrofits.

Q12: What benefits does IFLAS bring to enterprises?

  • Significant reduction in parking collision incidents
  • Improved traffic flow during peak hours
  • Enhanced corporate safety image
  • Increased user satisfaction and trust

Q13: Which industries have adopted IFLAS?
IFLAS has been successfully deployed across listed companies, technology parks, high-end commercial buildings, and public institutions, especially in high-traffic, safety-critical parking environments.