---
title: How real-time data helps Caltrans analyze detours and speed up construction work
description: Major construction projects require ongoing detour analysis to minimize traffic impact and maximize construction windows.
---

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##### CASE STUDY

# How real-time data helps Caltrans analyze detours and fix traffic disruptions fast

 

When highway traffic is disrupted due to road work or unplanned incidents, staying on top of real-time traffic conditions is essential to ensure detours are working, road workers are safe, and queues are minimized.

During a highway repaving project in Sacramento, Caltrans used StreetLight's real-time and historical dashboard to continuously review the impact of lane closures on ongoing traffic patterns. What the team found also allowed them to increase construction windows, enabling faster road work. 

See how Caltrans used StreetLight to:

- ![Group 1171276721](https://learn.streetlightdata.com/hs-fs/hubfs/Group%201171276721.png?width=26&height=27&name=Group%201171276721.png) Fill data gaps without putting staff in harm's way
- ![Group 1171276721](https://learn.streetlightdata.com/hs-fs/hubfs/Group%201171276721.png?width=26&height=27&name=Group%201171276721.png) Analyze real-time traffic during lane closures vs. typical traffic
- ![Group 1171276721](https://learn.streetlightdata.com/hs-fs/hubfs/Group%201171276721.png?width=26&height=27&name=Group%201171276721.png) Expand construction windows based on real-time traffic data

![3d-1](https://learn.streetlightdata.com/hs-fs/hubfs/3d-1.png?width=600&height=600&name=3d-1.png)

## Monitor ongoing traffic conditions with real-time data

![Group 1171276533-1](https://learn.streetlightdata.com/hs-fs/hubfs/Group%201171276533-1.png?width=56&height=47&name=Group%201171276533-1.png)

Ensure safer work zones and smooth detours that keep traffic moving

![Group 1171276533-1](https://learn.streetlightdata.com/hs-fs/hubfs/Group%201171276533-1.png?width=56&height=47&name=Group%201171276533-1.png)

Monitor conditions during construction to manage shifting traffic patterns

![Group 1171276533-1](https://learn.streetlightdata.com/hs-fs/hubfs/Group%201171276533-1.png?width=56&height=47&name=Group%201171276533-1.png)

Evaluate project impact after completion to inform and justify future improvements

## How real-time data helps Caltrans analyze detours and fix traffic disruptions fast

[Download the Case Study ![Group 427320837](https://learn.streetlightdata.com/hs-fs/hubfs/Group%20427320837.png?width=24&height=14&name=Group%20427320837.png)](https://learn.streetlightdata.com/caltrans-traffic-detour-plan-transportation-data#anchor)

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