Tarun Mangla

In an effort to expand Internet access, local and federal policymakers have sought to use speed test data to determine where to allocate funding.

This research characterizes the state of Internet equity in Chicago (IL), focusing on different dimensions of Internet equity, including availability, affordability, and adoption. To this end, we combine multiple existing datasets to understand the digital divide in Chicago and the contributing factors. Our findings show a disparity in broadband adoption rates across neighborhoods in Chicago: Broadband adoption varies between 58--93% across community areas, with low access areas mostly concentrated in South and West Chicago.

A longstanding approach to measuring Internet performance is to directly compare throughput against pre-defined benchmarks (e.g., 25 Mbps downstream, 3 Mbps upstream).

Consumers, regulators, and internet service providers (ISPs) all use client-based "speed tests" to measure network performance, both in single-user settings and in aggregate. Two prevalent speed tests, Ookla's Speedtest and Measurement Lab's Network Diagnostic Test (NDT), are often used for similar purposes, despite having significant differences in both the test design and implementation and in the infrastructure used to conduct measurements. This paper presents a comparative evaluation of Ookla and NDT7 (the latest version of NDT), both in controlled and wide-area settings.