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 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.


Ready to take the next step?

Find out more about what In|Time can do for you.


Introducing In|Time

Rhythm Engineering founder and CEO, Reggie Chandra, introduces the In|Time travel-time measurement system and explains why it is the most accurate, secure and versatile solution on the market today.

Reliable Real-Time Measurement is Essential

Transportation Infrastructure Degrades 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. 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 changes. With increasingly congested roads, a boom in commercial shipping and the need for fresh thinking about public transit, outdated technologies no longer meet contemporary needs.


The Federal Highway Administration is encouraging agencies to adopt travel time reliability measures to better manage and operate their transportation system.

US Department of Transportation | 2015
Federal Highway Administration (FHWA)

Ready to take the next step?

Find out more about what In|Time can do for you.

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 registered 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 nearly 100% detection and at least 95% accuracy. Even when combined, Bluetooth and Wi-Fi detection can only capture 24% of the data that can be captured with In|Time.

Capture Data Any Time, In Any Weather

The In|Time camera combines a LED-illuminated, high-resolution ALPR 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 as they happen across the transportation network.

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 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/WiFi 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 10 to 100m1 Up to 500m2
Detection Rate ≥ 98% 20-25%1 Up to 40%2
Overall Accuracy Rate* ≥ 95% 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

Ready to take the next step?

Find out more about what In|Time can do for you.

In|Time Pricing

Taxpayer dollars are meant to transform 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 ALPR camera and processor (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) $5,000

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.

Contact Us for More Information

Download In|Time Data Sheet

Download Data Sheet

Deploying In|Time

With the license plate capture and processing capabilities built in, installation of In|Time is minimal and can be broken into five steps.



Mount In|Time on a traffic signal mast arm, pointing away from an intersection approach to capture the rear license plates on vehicles. Step 1

Connect Networking/Power Cable

Connect the circular connector on the provided networking/power combination cable to the In|Time camera. Step 2

Connect Ethernet

Connect the Ethernet RJ45 connector on the other end of the cable to the network switch on the Rhythm Engineering equipment panel, located in the traffic cabinet. Step 3

Connect Wires

Connect the stripped wires on the cable to the VDC+, VDC- and Ground terminals on the Rhythm Engineering equipment panel. Step 4

Configure Network

Add each camera’s network configuration into In|Time’s integrated software. Step 5

Assign Locations

Using In|Time’s software, assign the location, vehicle capture direction and the order of each In|Time camera within the flow of traffic. Step 6