Use TimeLiner for Time-Based Clashing

Time-based clashing combines the main functions of TimeLiner and Clash Detective.

Project models can include the static representation of temporary items, such as work packages, ships, cranes, installations, and so on. Such static objects can be added into the TimeLiner project, and scheduled to appear and disappear at particular locations, over specific period of time.

As these static work packages 'move' around a project site, based on a TimeLiner schedule, it is possible that two work package objects could, at some point in the schedule, take up the same space, that is 'clash'.

Setting up time-based clashing enables the automated checking of this throughout the project lifetime. When a time-based clash session is run, at each step of TimeLiner sequence, Clash Detective is used to check if a clash has occurred. If it has, a date of when the clash took place is logged, along with the event that caused the clash.

You can review the time-based clash results and, for example, reschedule work package objects to eliminate such clashes.

Prepare Static Work Packages for Time-Based Clashing

1. Each static work package that you want to use needs to be modelled in the project model covering the area or volume required; for example, you can use semi-transparent blocks.
2. These static packages must be added as tasks to the TimeLiner schedule.
3. Extra task types must be added to TimeLiner (on the Configure tab) to represent different types of static packages. You also need to configure the appearance for each added task type.

Link to a TimeLiner Schedule for Time-Based Clashing

1. In Navisworks open the project model file, which contains the TimeLiner schedule with the static work package tasks.

2. If the TimeLiner window is not already open, click Home tab > Tools panel > TimeLiner .

3. Click the Tasks tab, and check the static package tasks are displayed.

4. Click the Configure tab, and check the task types have been added to match the static packages.

5. Click the Simulation tab, and play the simulation to view the static packages being displayed. Check they are shown in the correct location and over the correct periods of time.

6. If the Clash Detective window is not already open, click Home tab > Tools panel > Clash Detectve .

7. Click the Select tab.

8. In the Selection A and Selection B panes, select the objects you want to test.

9. In the Link drop-down box, select TimeLiner.

10. Click the Run Test button. Clash Detective will check at each interval in the project to see if there are any clashes present. The number of found clashes is displayed at the top of the Clash Detective window.

    Note: If the TimeLiner project is large in size, running this type of clash test will invariably take more time to complete than a normal clash run.

    You can now review the found clashes.