Periods

Configure time periods and time windows for a project in the Periods section. Periods are used for monitor and evaluation templates. Time windows are used only for evaluation templates.

Note that you should not make periods too long so that they contain a very large number of days. Calculating the data can then take a long time while loading data within the period.

Periods

Periods table

The table shows all existing periods created for the project. In this table you will find per period:

• Period label: The name of the period (sortable).
• Type: Whether the period is static or dynamic (sortable).
• From: The first date in the period, calculated relative to today for a dynamic period.
• To: The last date in the period, calculated relative to today for a dynamic period.
• Days: The number of days remaining after weekday selection and exclusions, calculated relative to today for a dynamic period.
• Actions: Buttons to edit or delete a period.

In monitor and evaluation templates, From, To and Days are recalculated based on the date chosen there.

Using this table you can quickly review, adjust or delete existing periods. Add new periods via the “Add period” button.

NB: the difference between static and dynamic periods is explained below.

Creating a period

1. Navigate to Project Configuration > Periods
2. Click the “Add period” button (top right)
3. Fill in the form with all desired settings (see below for details)
4. Click “Save”

When creating a period you can configure various settings. Every period ultimately results in a series of days that is used for analyses and evaluations. The configuration options determine which days are included in this series.

Period label

Give the period a clear name that indicates what the period represents, for example:

• “Spring 2024”
• “Summer period”
• “Last 4 weeks”

Period type

Choose between two period types:

Static periods

Static periods have fixed start and end dates that do not change automatically:

Configuration:

• Select “Static” as the period type
• Start and end date: Select the start and end date via the date picker
• You can add multiple date ranges to one period by clicking “Add date range”. See Multiple date ranges for more information.
• Each date range can have its own weekday selection and exclusions

Usage: Ideal for fixed periods such as seasons, specific months, or historical comparisons.

Dynamic periods

Dynamic periods are calculated automatically based on the number of weeks back from the selected day in monitor or evaluation templates:

Configuration:

• Select “Dynamic” as the period type
• Number of weeks back: Enter the number of weeks (e.g. 5 weeks)
• The period is calculated automatically from the selected day backwards when the template is used
• You can configure only one dynamic period per period label

Usage: Useful for periods that should always be the last X weeks relative to the selected day, such as “Last 4 weeks” or “Past month”. The selected day can be today, for example, but also another date you choose in the monitor or evaluation template.

Weekday selection

You can choose which weekdays are included in the period. There are two options:

Custom weekday selection

Select specific weekdays to include:

• Choose “Custom weekday selection”
• Tick the desired weekdays (Monday through Sunday)
• By default all weekdays (Monday through Friday) are selected
• You can, for example, select only weekdays, or specific days such as only Monday and Friday

Example: Select only Monday, Wednesday and Friday to analyse only those days.

Same weekday

The system uses only the days that match the weekday of the selected day in the monitor or evaluation template:

• Choose “Same weekday”
• The ticked weekdays are not used in the logic - only the weekday of the selected day counts
• When you select a day in the template (for example a Wednesday), only the Wednesdays within the period are included
• The weekday of the selected day determines which days from the period are used

Example:

• You configure a dynamic period of 4 weeks back with “Same weekday”
• In the monitor template you select 15 March 2024 (a Friday) as the selected day
• The period now contains only the Fridays within the last 4 weeks before 15 March (so the Fridays of 16 February, 23 February, 1 March and 8 March)
• If you had selected a Wednesday instead, only the Wednesdays would be included

Exclusions

You can exclude specific days from the period:

Available exclusions:

• Public holidays: Dutch public holidays are excluded automatically
• Holidays region north: School holidays for region north (based on Rijksoverheid data)
• Holidays region middle: School holidays for region middle (based on Rijksoverheid data)
• Holidays region south: School holidays for region south (based on Rijksoverheid data)

Note:

• Holiday periods are based on data from the Rijksoverheid
• Exclusions can result in no dates remaining in a period. In that case, no data that depends on this period is shown either
• By default “Public holidays” are excluded

Example: If you configure a period for weekdays and exclude public holidays and school holidays, only weekdays that do not fall on public holidays or school holidays are included.

Multiple date ranges (static periods only)

For static periods you can add multiple date ranges to one period:

1. Configure the first date range with start and end date, weekday selection and exclusions
2. Click “Add date range”
3. The date range is added to the “Selected date ranges” list
4. Repeat this process to add multiple date ranges
5. Each date range can be removed individually via the remove button

Usage: Useful when you want to combine multiple separate periods, for example “All Mondays in March and April” or “Week 10-15 and week 20-25”.

Editing a period

1. Find the period in the table
2. Click the edit button
3. Change the desired settings
4. Click “Save”

Deleting a period

1. Find the period in the table
2. Click the remove button
3. Confirm the removal

Note: Periods that are used in templates can be deleted. First remove the templates that use the period, or change the selected period in those templates.

Time windows

Time windows are used to analyse specific time windows in evaluation templates. You can configure a maximum of 5 time windows.

Time windows table

The table shows all configured time windows with:

• Name: The name of the time window (sortable)
• From: The start time of the time window (sortable)
• To: The end time of the time window (sortable)
• Actions: Edit and delete buttons

Note: When the maximum number of time windows (5) is reached, a warning appears. Edit or delete an existing time window to add a new one.

Adding a time window

1. Click “Add slot” in the Time window section
2. Give the time window a name (e.g. “Morning peak”)
3. Select start and end time (e.g. 07:00 - 09:00)
4. Save

Editing a time window

1. Find the time window in the table
2. Click the edit button
3. Change the desired settings
4. Save

Deleting a time window

1. Find the time window in the table
2. Click the remove button
3. Confirm the removal

Tips

• Keep periods as short as possible to ensure data loads quickly (do not make them unnecessarily long)
• Make sure periods are defined logically for your analyses and evaluations.
• Use clear and consistent naming for periods so they are easy to recognise in templates.
• Test periods first with a small number of days to check that the configuration produces the desired result.
• Note that exclusions (public holidays, school holidays) can result in an empty period - check this in advance.
• Consider dynamic periods for recurring analyses that should always include the last X weeks.
• For static periods: check that date ranges do not unintentionally overlap when you use multiple ranges.