Dynamics of long multi-trailer heavy vehicles crossing short to medium span length bridges

2021 ◽  
Vol 247 ◽  
pp. 113149
Author(s):  
M.W. Meyer ◽  
D. Cantero ◽  
R. Lenner
Keyword(s):  
Span Length ◽  
Heavy Vehicles

SEISMIC BEHAVIOR OF SUPER LONG MULTI-SPAN SUSPENSION BRIDGE WITH CENTER SPAN LENGTH OF 3000M

2018 ◽  
Vol 74 (4) ◽  
pp. I_803-I_817
Author(s):  
Shingo IWASHITA ◽  
Hitoshi NAKAMURA ◽  
Kuniei NOGAMI ◽  
Yusuke KISHI ◽  
Kazuya MAGOSHI ◽  
...  
Keyword(s):  
Seismic Behavior ◽  
Suspension Bridge ◽  
Span Length

Analysis of Single-Vehicle Crash Injury Severities in Urban River-Crossing Road Tunnels

2015 ◽  
Vol 743 ◽  
pp. 526-532 ◽  
Author(s):  
C.M. Jiang ◽  
J.J. Lu ◽  
L.J. Lu
Keyword(s):  
Heavy Vehicles ◽  
Probit Regression ◽  
Factors Affecting ◽  
Explanatory Variables ◽  
Urban Road ◽  
Road Tunnels ◽  
Negative Effect ◽  
Single Vehicle ◽  
Injury Severities ◽  
One Year

Based on the originally unprocessed data from the Official Platform of“110”Alarming Receiving Center (OP110ARC) of Shanghai Public Security Bureau (SPSB), 529 single-vehicle crashes reported during one year and a half which happened at the thirteen urban road tunnels going across the Huangpu River are used in this study. To investigate the factors affecting the crash influence severity levels, ordered probit regression is established. Several categories of factors are considered as explanatory variables in the models. The study finds that the entrance of the tunnels is the site where severe injury crashes trend to occur. Rainy and snowy days impose vehicles and motorists driving via the tunnel sections in danger. Tunnels with a low speed limit (40 km/h in this study) may be not as safe as we thought before. Two-wheel vehicles without sufficient physical protection for its drivers and heavy vehicles also show a negative effect on the operation safety of single-vehicle at these studied tunnels. Alcohol involved drivers are more likely to suffer from a severe crashes and gets badly hurt.

scholarly journals Sideslip estimation for articulated heavy vehicles at the limits of adhesion

2016 ◽  
Vol 54 (11) ◽  
pp. 1601-1628 ◽  
Author(s):  
Graeme Morrison ◽  
David Cebon
Keyword(s):  
Heavy Vehicles ◽  
Sideslip Estimation

scholarly journals A Wireless-Communication-Based Active Safety System for Articulated Heavy Vehicles

2015 ◽  
Author(s):  
Tina Mirfakhraie ◽  
Ramiro Liscano ◽  
Shenjin Zhu ◽  
Yuping He
Keyword(s):  
Wireless Communication ◽  
Wireless Network ◽  
Packet Loss ◽  
Data Exchange ◽  
Noise Burst ◽  
Sensor Data ◽  
Communication Link ◽  
Channel Fading ◽  
Heavy Vehicles ◽  
Lane Change Test

This paper presents an active trailer steering (ATS) system using a wireless communication link to facilitate exchanging information among vehicle units of articulated heavy vehicles (AHVs). A challenge for developing and implementing the wireless-communication-based ATS system is to address the problems of delay and packet-loss. Embedding wireless communication transceivers on an AHV may introduce delays for data exchange, and the transmitted data may be lost. Many reasons may lead to the delay and packet-loss, e.g., channel fading, noise burst, interference, etc. The proposed ATS system may prevent unstable motion modes of AHVs if the sensor data reach the controllers/actuators in real-time with an acceptable level of delay and packet-loss. In order to ensure the performance of the ATS control, a Kalman-filter-based estimator is introduced. The estimator uses the available dynamic data to estimate the current states of the AHV in case some sensor information is not available due to a delay or an outage in the wireless communication link. To investigate the effect of the time delay due to the wireless communication on the performance of the ATS control, co-simulations are conducted. The wireless network is modeled using TrueTime toolbox, the ATS controller is designed in SimuLink package, and the AHV model is constructed in TruckSim software. Integrating the wireless network modeled in TrueTime, the ATS controller designed in SimuLink, and the AHV model constructed in TruckSim leads to the co-simulation platform. Under the emulated double lane-change test maneuver, the effects of the wireless communication with two schemes on the direction performance of the AHV are examined.

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