---
lang: en
title: "Queue monitoring and waiting-time alerts"
url: https://nabrio.com/use-cases/queue-monitoring
canonical: https://nabrio.com/use-cases/queue-monitoring
updated: 2026-10-27
publisher: Nabrio Co., Ltd. (nabrio.com)
---

# Queue monitoring and waiting-time alerts

Nara counts the people in a queue zone and how long they wait, and calls more staff when the queue passes your threshold. In factories, the same approach watches buffer zones and staging areas, so work-in-progress does not build up unseen.

- Sectors: [Retail](https://nabrio.com/industries/retail.md), [Manufacturing](https://nabrio.com/industries/manufacturing.md)
- What it takes: Ready to configure. Works with Nara’s built-in models. You set up the zones, rules and outputs.
- Products: [Nara](https://nabrio.com/nara.md)

## The problem

Long queues lose customers, and in factories work-in-progress builds up unseen until it stops the line.

## How it works

- **Input:** Camera on the checkout, counter, buffer or staging area
- **Process:** Count people or items in the zone and their waiting time
- **Action:** Alert when a threshold is passed, with the trend on the dashboard

Draw the queue or buffer zone. Nara counts the people or items in it and measures how long each one has waited. When the count or waiting time passes your threshold, it notifies staff on Teams, Telegram or email, and the trend is shown on the dashboard.

## Variations

### Checkout and counter queues

Count people in the queue zone and their waiting time, and call more staff when the queue passes a threshold.

### Backlog and buffer monitoring

Count items or people in buffer zones, queues or staging areas, and alert when a threshold is passed.

## What you need

- A camera over the queue or buffer zone
- A PC or edge device running Nara

## Nara building blocks

- Camera nodes
- People and object detection
- Tracker with zone counts and dwell time
- If
- Notifications
- Dashboard

AI models: [People detection](https://nabrio.com/nara/ai-models.md), [Object tracking and analytics](https://nabrio.com/nara/ai-models.md)

## What it improves

- Waiting time
- Lost customers
- Line stoppages

## Frequently asked questions

### Can we use the cameras we already have?

Usually, yes. Nara reads standard IP cameras over RTSP, as well as Basler industrial cameras, USB webcams and video files.

## Related use cases

- [Staff presence monitoring](https://nabrio.com/use-cases/staff-presence-monitoring.md)
- [People counting](https://nabrio.com/use-cases/people-counting.md)
- [Heatmaps and dwell time](https://nabrio.com/use-cases/footfall-heatmaps-and-dwell-time.md)

Talk to us about queue monitoring: sales@nabrio.com. [Download Nara](https://nabrio.com/download.md).