What is an Expansion Factor?
An expansion factor is a multiplier used to scale up sample data to represent a larger population or area accurately. In transportation studies, it adjusts the sample count of trips, vehicles, or travelers to estimate total figures for an entire region. Expansion factors account for variations in demographics, travel behavior, and land use, making them essential for generating reliable data in planning. By applying expansion factors, planners can analyze overall travel demand and design infrastructure that meets the broader population's needs.
How to Calculate Simple Expansion Factor?
Simple Expansion Factor calculator uses Simple Expansion Factor = Total Number of Household/(Total Number of Addresses-Number of Samples) to calculate the Simple Expansion Factor, Simple Expansion Factor formula is defined as a measure of the adjustment made to the base cost of transportation to account for the additional costs incurred due to the complexity of the transportation network, providing a more accurate estimate of the total transportation cost. Simple Expansion Factor is denoted by Fi symbol.
How to calculate Simple Expansion Factor using this online calculator? To use this online calculator for Simple Expansion Factor, enter Total Number of Household (a), Total Number of Addresses (b) & Number of Samples (d) and hit the calculate button. Here is how the Simple Expansion Factor calculation can be explained with given input values -> 1.875 = 15/(19-11).