Handheld global positioning system (GPS) devices can serve as a new tool to collect an
individual's trip information with advantages of low cost, accurate data, and intensive spatial …

In the last decades, studies on travel mode detection from location data have been
increasing exponentially. However, these studies have struggled with three limitations: data …

While transit agencies have increasingly adopted systems for collecting data on passengers
and vehicles, the ability to derive high-resolution passenger trajectories and directly …

This paper presents a data collection framework and its prototype application for personal
activity–travel surveys through the use of smartphone sensors. The core components of the …

With the advent of ubiquitous mobile sensing and self-tracking groups, travel demand
researchers have a unique opportunity to combine these two developments to improve the …

In this paper, we compare different algorithms for the recognition of transportation modes
based on features extracted from the accelerometer data. The performance and …

Abstract 1 Travel surveys form a key component of transportation planning by making
transportation related 2 data available to the planners. Smartphones are emerging as ideal …

Basic traffic counts are among the key elements in transportation planning and forecasting.
As emerging data collection technologies proliferate, the availability of traffic count data will …

Embedded with a wide variety of sensors, such as GPSs, accelerometers, gyroscopes, and
microphones, smartphones have become a very useful tool in the context of travel surveys …

This chapter describes a smartphone-based prompted recall travel survey that aims to
collect more accurate data for transportation modeling. It details the design and …