---
title: Data-Informed Signal Timing Improves Intersection Safety and Congestion
description: See how Temecula used on-demand Turning Movement Counts to optimize signal timing, reduce congestion, and make intersections safer throughout the city.
image: https://learn.streetlightdata.com/hubfs/LINKEDIN%20template%20Aug%202022_Signal%20Timing%20Case%20Study%20social.png
---

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CASE STUDY

# To Improve Safety and Congestion, Expedite Signal Retiming With Big Data

##### Signal timing is just one factor in traffic management, but it has an outsized impact on congestion and safety. To time signals effectively, cities need turning movement counts (TMC) for dozens of intersections, many of which lack permanent traffic counters.

##### When Temecula’s congested freeways led to gridlock throughout the city and unsafe streets, engineers needed TMC at 40 intersections by different times of day and days of the week in order to get vehicles moving. 

##### See how they used on-demand intersection analysis to:

- Unclog major thoroughfares and reduce commute times 
- Get 2 months of historical TMC for 40 key intersections in hours 
- Reveal true peak traffic hours and compare weekdays to weekends 
- Strategically implement safety grant funds to synchronize traffic signals 

### Download the Case Study

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![Temecula Signal Retiming Case Study Mockup](https://learn.streetlightdata.com/hubfs/Case%20Studies/Temecula%20Signal%20Retiming/Temecula%20Signal%20Retiming%20Case%20Study%20Mockup.png)

##### “We saved at least 3 months of time – you can get everything you need from StreetLight in hours. To set it up in less than a day and get all the info we needed, nice and clean and formatted was so easy.” 

![](https://learn.streetlightdata.com/hubfs/Webinars%20and%20Video/Intersection%20Studies/Temecula%20logo.png)

**Nick Minicilli**

Traffic Engineer, City of Temecula

## Improve congestion and intersection safety with optimized signal timing

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Get turning movement counts for all your intersections in hours, not months

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Segment traffic by time of day and day of week to reveal peak hours and commute patterns

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Access historical data to see long-term traffic patterns without the cost or delay of traditional data collection

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### To Improve Safety and Congestion, A City Fast Tracks Signal Retiming with Big Data

[Download the Case Study](https://learn.streetlightdata.com/signal-timing-improves-intersection-safety-traffic-flow#form-section)