TY - GEN
T1 - A Real-time Traffic Information Model Using GPS-based Probe Car Data
AU - Chen, Wan-Jia
AU - Chen, Chi-Hua
AU - Lin, Bon-Yeh
AU - Lo, Chi-Chun
PY - 2011
Y1 - 2011
N2 - In recent year, the rise of economic growth and technology advance leads to improve the quality of service of traditional transport system. Intelligent Transportation System (ITS) has become more and more popular. At present, the collection of real-time traffic information is executed in two ways: (1) Stationary Vehicle Detectors (VD) and (2) Global Position System (GPS)-based probe cars reporting. However, VD devices need a large sum of money to build and maintain. Therefore, we propose the linear regression model to infer the equation between vehicle speed and traffic flow. The traffic flow can be estimated from the speed which is obtained from GPS-based probe cars. In experiments, the Speed Error Ratio (SER) and Flow Error Ratio (FER) of linear regression model are 4.60% and 24.63% respectively. The estimated speed and traffic flow by using linear regression model is better than by using linear model, power law model, exponential model, and normal distribution model. Therefore, the linear regression model can be used to estimate traffic information for ITS.
AB - In recent year, the rise of economic growth and technology advance leads to improve the quality of service of traditional transport system. Intelligent Transportation System (ITS) has become more and more popular. At present, the collection of real-time traffic information is executed in two ways: (1) Stationary Vehicle Detectors (VD) and (2) Global Position System (GPS)-based probe cars reporting. However, VD devices need a large sum of money to build and maintain. Therefore, we propose the linear regression model to infer the equation between vehicle speed and traffic flow. The traffic flow can be estimated from the speed which is obtained from GPS-based probe cars. In experiments, the Speed Error Ratio (SER) and Flow Error Ratio (FER) of linear regression model are 4.60% and 24.63% respectively. The estimated speed and traffic flow by using linear regression model is better than by using linear model, power law model, exponential model, and normal distribution model. Therefore, the linear regression model can be used to estimate traffic information for ITS.
KW - Real-time Traffic Information; GPS-based Probe Car Data; Linear Regression Model; Intelligent Transportation Systems
U2 - 10.4028/www.scientific.net/KEM.467-469.1433
DO - 10.4028/www.scientific.net/KEM.467-469.1433
M3 - Conference contribution
VL - 467-469
T3 - MATERIALS, MECHATRONICS AND AUTOMATION, PTS 1-3
SP - 1433
EP - 1437
BT - MATERIALS, MECHATRONICS AND AUTOMATION, PTS 1-3
A2 - Zeng, D
T2 - International Conference on Materials, Mechatronics and Automation (ICMMA 2011)
Y2 - 15 January 2011 through 16 January 2011
ER -