Signal Timing and Queue Length Survey

At Traffic Data Count, we deliver professional Signal Timing and Queue Length Surveys to help local authorities, engineers, and consultants improve traffic signal performance and reduce delays. By collecting and analyzing data on how signals operate and how queues form, they can make smarter decisions that save time, reduce pollution, and make roads safer for everyone.

What is a Signal Timing and Queue Length Survey?

A Signal Timing and Queue Length Survey measures how traffic signals at intersections control vehicle flow and how long vehicle queues become while waiting at red lights. The survey helps understand if signal timings are efficient and whether queues cause congestion or delays.

Signal Timing – The duration of each traffic signal phase (green, amber, red) for all movements (e.g., left, straight, right turns).
Queue Length – The number of vehicles or the physical length (in meters) waiting at each approach during red signal phases or peak times.

Why are These Surveys Important?

To reduce traffic congestion and waiting times
Improve traffic signal efficiency
Increase safety at intersections
Help plan upgrades or redesigns of traffic signals
Minimize fuel consumption and emissions due to idling vehicles

Data Collected in Signal Timing and Queue Length Surveys

Data Type	Description
Signal Phases	Duration of green, yellow, and red lights
Cycle Length	Total time for one full signal cycle
Queue Lengths	Number of vehicles waiting at the signal
Delay Time	Average time vehicles wait at red lights
Arrival Patterns	Timing and flow of vehicles arriving at signals
Traffic Volume	Number of vehicles passing through the intersection

Pro Tip: Accurate survey data is key to better planning. Explore professional traffic and household data collection services at Traffic Data Count.

How Survey Data is Used

Adjust signal timings to better match traffic demand
Design adaptive signal control systems that change timings based on real-time traffic
Identify problem intersections with excessive delays or long queues
Plan infrastructure changes like adding lanes or improving signage

Methods of Conducting These Surveys

Manual Observation: Counting vehicles and timing signals at intersections
Video Recording: Analyzing recorded footage to measure queue lengths and signal phases
Automated Traffic Counters: Using sensors to detect vehicle presence and signal timings
Simulation Tools: Modeling traffic flow based on survey data for optimization

Benefits of Signal Timing and Queue Length Surveys

Reduce Intersection Delays

Precise signal timing data helps fine-tune green splits to match traffic demand, minimizing unnecessary wait times.

Improve Safety

Reducing long queues at intersections prevents aggressive maneuvers, red-light running, and rear-end collisions.

Enhance Intersection Capacity

Understanding queue lengths helps identify underutilized lanes or overburdened approaches and supports efficient lane configuration.

Better Traffic Modeling

Accurate real-world data improves simulations in software tools like LINSIG or VISSIM, enhancing decision-making.

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Our Process

Steps to Accurate Traffic Data Analysis

1. Data Collection & Analysis

We gather and analyze traffic data to provide actionable insights that improve flow and safety.

2. Management & Execution

Our team ensures seamless project management for timely, high-quality delivery.

3. Project Oversight & Delivery

We oversee every phase to ensure projects meet deadlines, budgets, and client requirements.

12+

Years of Experience

Our Legacy

Why Choose Traffic Data Count?

We are your trusted partner in traffic data analysis, offering expert solutions to support smarter urban development and transportation planning. Here’s why clients choose us:

Testimonials

Honest Reviews from our Customers

“We collaborated with this team for a detailed intersection analysis project in Munich. The turning movement count data was precise, well-documented, and delivered on time.”

“The analysis helped us optimize signal timing and reduce congestion effectively. Highly recommend their expertise for traffic engineering projects.”