The Most Accurate Travel-Time
Measurement Solution

In|Time is a travel-time measurement solution that offers unprecedented accuracy using Automatic License Plate Recognition (ALPR) technology. Vehicles are uniquely fingerprinted and tracked throughout traffic flow in a corridor in real-time, while all collected license plate data is encrypted to ensure anonymity of motorists. This operation enables the collection and reporting of exceptionally accurate travel-time data with virtually no data loss.

See the Benefits of In|Time

Reliable Real-Time Measurement is Essential

Transportation Infrastructures Degrade Over Time

Arterial and freeway systems require frequent evaluation and modification to maintain peak efficiency of traffic flows. Without accurate travel-time data, traffic engineers are limited in their abilities to evaluate infrastructure, prioritize improvements and implement solutions, such as deploying new traffic signal timing plans or implementing geometric improvements.

Unreliable Data Negatively Impacts Motorists

Motorists, traffic engineers, transportation planners, freight operators and public transit agencies all depend on accurate travel-time data to set schedules and plan routes based on traffic flow. Accordingly, the Federal Highway Administration (FHWA) has asked agencies to improve the quality of travel-time measurements with reliable, real-time data collection.

Real Problems Demand Real-Time Solutions

Older, less accurate data collection and measurement methods may have worked in the past, but transit needs change. With increasingly congested roads, a boom in commercial shipping and the need for fresh thinking about public transit, outdated technologies no longer meet contemporary needs for advanced traffic plans.

How In|Time Works

Track Travel Data in Real-Time

When a vehicle passes the first In|Time camera (point A), it is identified, time-stamped and given a unique ID that is again identified and time-stamped when it passes a second In|Time camera (point B). Although the vehicles are tracked through a corridor, the actual license plate data is never stored, safeguarding the integrity and anonymity of license plate information and the privacy of motorists.

Get Accurate, Actionable Data

In|Time’s Automatic License Plate Reader (ALPR) cameras capture and track every vehicle through a specific corridor, allowing for 90% detection and at least 90% accuracy. Even when combined, Bluetooth and Wi-Fi detection can only capture 24% of the vehicles on a roadway.


Capture Data Any Time, In Any Weather

The In|Time camera combines a LED-illuminated, high-resolution Automatic License Plate Recognition camera, a secondary context video camera and an onboard processor in a single device for instant vehicle identification. It works day or night and in most weather conditions to accurately capture license plates up to 115 feet away and across two lanes of traffic. The short-pulse LED illuminator is effective for totally dark environments (0 lux.) and eliminates motion blur, even for vehicles moving up to 200 mph.


Access Information Easily

In|Time’s integrated software can be accessed anywhere using a computer, tablet or mobile device. Real-time and historical travel-time data are displayed using GoogleMap™ or OpenStreetMap™ interfaces, helping agency staff identify incidents and congestion across the transportation network — keeping your traffic plan optimized.


In|Time Data Sheet

The Problems with Other Travel-Time Measurement Systems

“Floating Car” Method

A test car driven by an observer crosses the study section, matching the speed of traffic. The time over multiple trips is recorded and the average is used as the final travel time. In this method, the sample size is usually fewer than 30 cars and does not account for travel time during weekend and adjacent days and non-peak hours, meaning the measurement of traffic flow is prone to errors.

Inductive Loop

Two rectangular wire loops are buried under the roadway a short distance apart, allowing traffic engineers to calculate the speed of vehicles passing over them. The travel times are extrapolated based on the speed captured and the length of the corridor. This method makes no allowance for possible delays or stops beyond the loops, creating unreliable estimates.

Bluetooth & Wi-Fi Connection

Using motorists’ mobile phone signals to detect corridor volume and measure travel time is a flawed approach. Scanning a large number of channels to pick up a mobile phone signal over Bluetooth or Wi-Fi misses vehicles and counts extraneous signals from non-motorists or multiple motorists in the same vehicle. It also leads to significant errors due to the inability to measure a vehicle’s direction.

Technology Comparison Matrix



Detection Range Pinpoints Exact Location 32 to 328 ft.1 Up to 1640 ft.2
Detection Rate ≥ 90% 20-25%1 Up to 40%2
Overall Accuracy Rate* ≥ 90% 3-4%1 35-40%2

*Accuracy rate based on identifying same vehicle signature at two distinct points along a route.
1Bluethooth Basics | Bluetooth Technology Website
2Joshua Bardwell; Devin Akin (2005). Certified Wireless Network Administrator Official Study Guide

In|Time Pricing

Taxpayer dollars are meant to enrich the community — from faster commutes, safer roads and better air quality to less time spent in traffic and more time spent with loved ones. That’s why we work hard to offer as much value as possible with our innovative solutions.

All In|Time systems include the Following:

  • An Automatic License Plate Recognition (ALPR) system (requires a minimum of 2 units)
  • Integrated software to configure and manage In|Time
  • Two-year hardware and software warranty
  • Two years of technical support available 24/7/365
Description Price
In|Time In|Time Travel Time Measurement system (minimum 2 units) $6,500

Service & Support

Consulting Project Management

As your partner, we want to support you throughout the installation and deployment process. We will guide you from intersection assessment to final adjustments after deployment. Our project management fees cover consulting time for training, on-site installation assistance and remote configuration of your intersections. Fees are typically assessed on a per-corridor basis and are dependent on the scope of your project.

Partner Support — 24/7

From years of partnering with traffic engineers, we understand that traffic issues don’t happen only during normal business hours. Our support doesn’t either; you can count on us to be here for you all day, every day. In fact, our partners tell us our technical support is comparable to having several full-time engineers on staff. This ensures you and your community will experience the maximum benefits from our products and services.

Warranty & Support Plan

Rhythm Engineering provides a two-year warranty and technical support plan with each purchase and deployment of our traffic control products and services, at no additional cost. This plan includes a repair or replace guarantee on defective Rhythm Engineering hardware, two years of remote technical support available 24/7/365 and two years of free software updates. We also offer extended support & warranty plans which are tailored to your agency’s needs.

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Jonathan StevensIn|Time