Examples#

Building Models#

Examples illustrating a series of workflows used for building models from scratch or from data exported from other models.

Please note that these processes are meant to get you 70 to 80% of the way towards building the supply model.

The user should be prepared to spend a non-insignificant amount of time manually editing the network and correcting errors contained in the open-data used as the basis of the model and those that may have been introduced by the model building process.

Important

Do not proceed to applying these procedures before familiarizing yourself with the software documentation, particularly Creating a new model supply.

Checking a model for critical errors

Checking a model for critical errors

Simplifying a model network

Simplifying a model network

Building a model from GMNS

Building a model from GMNS

Creating external locations

Creating external locations

Guided creation of a new model from scratch

Guided creation of a new model from scratch

Creation of locations from OSM data

Creation of locations from OSM data

Editing Models#

Examples illustrating a series of workflows used for editing models in place.

Simplifying networks

Simplifying networks

Changing the Projection system for a model

Changing the Projection system for a model

Changing the zone system for a model

Changing the zone system for a model

Editing Public Transport Route System

Editing Public Transport Route System

Preparing Inputs#

Examples illustrating a series of workflows used for preparing model inputs, useful when building new models and when preparing forecasts.

Redistributing fleets based on new control totals

Redistributing fleets based on new control totals

Working with existing models#

Notebooks showing how to work with existing models

Retrieving model tables

Retrieving model tables

Restoring from version control

Restoring from version control

Compares two models

Compares two models

Migrate (update) databases

Migrate (update) databases

Computing paths over the network

Computing paths over the network

Manipulating Skim matrices

Manipulating Skim matrices

Computing walking distance to transit stops

Computing walking distance to transit stops

Running models#

Notebooks showing how to prepare and run a model.

Running a model

Running a model

Examining Memory

Examining Memory

Running a model on EQSQL

Running a model on EQSQL

Result Analysis#

Procedures to analyse results and visualize model input and results

Analysing Population Synthesis

Analysing Population Synthesis

Comparing Model Ouputs

Comparing Model Ouputs

Analyzing traffic convergence

Analyzing traffic convergence

Examining paths

Examining paths

Modelling like in the old days#

Notebooks showing how to transform Polaris inputs and outputs into traditional modelling formats such as demand matrices and hourly link loads.

There are also examples on how to perform quick back-of-the-envelop static traffic assignment using the Polaris demand and network using AequilibraE.

Static Traffic Assignment

Static Traffic Assignment

Exporting trips to zonal matrices

Exporting trips to zonal matrices

Outputs for Static Traffic Assignment

Outputs for Static Traffic Assignment

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