Application of an Intelligent Transportation System in a Travel Time Information System: Safety Assessment and Management

2017 ◽  
Vol 2635 (1) ◽  
pp. 46-54 ◽  
Author(s):  
Salvatore Cafiso ◽  
Carmelo D’Agostino ◽  
Mariusz Kiec ◽  
Sylwia Pogodzinska
Keyword(s):  
Information System ◽  
Travel Time ◽  
Traffic Control ◽  
Road Network ◽  
Empirical Bayes ◽  
Intelligent Transportation System ◽  
Mobile App ◽  
Safety Performance ◽  
On The Road ◽  
Time Information

The research presented here evaluated road safety on the road sections included in the Intelligent Traffic Control System of the Podhale Region (ISSRRP) in Poland. This travel time information system consists of a remote traffic microwave sensor, cameras, as well as automatic plate number recognition on national roads with variable message signs and a mobile app to suggest alternative routes in the regional road network. The study analyzed changes in safety caused by transferring traffic volume from national to regional rural and suburban road networks. The assessment of the safety performance was performed with an empirical Bayes study, with periods of three years before and after the implementation of ISSRRP. No changes were identified in the safety performance of the national road network after to the introduction of ISSRRP. However, when the overall network is considered, a potential increase in the number of crashes may be expected, depending on the volume of traffic transferred from national to regional roads, and rural or suburban areas. Therefore, a new approach for system management was proposed, taking into account not only improvement in traffic flow, but also safety performance.

scholarly journals Impact on Road Safety and Operation of Rerouting Traffic in Rural Travel Time Information System

Sensors ◽  
2020 ◽  
Vol 20 (15) ◽  
pp. 4145
Author(s):  
Mariusz Kiec ◽  
Carmelo D’Agostino ◽  
Sylwia Pazdan
Keyword(s):  
Information System ◽  
Travel Time ◽  
Traffic Control ◽  
Time Management ◽  
Road Safety ◽  
Road Network ◽  
Safety Level ◽  
The Road ◽  
Traffic Operation ◽  
Time Information

The Travel Time Information System (TTIS) is an Intelligent Traffic Control System installed in Poland. As is common, travel time is the only factor in the decision about rerouting traffic, while a route recommendation may consider multiple criteria, including road safety. The aim of the paper is to analyze the safety level of the entire road network when traffic is rerouted on paths with different road categories, intersection types, road environments, and densities of access points. Furthermore, a comparison between traffic operation and road safety performance was carried out, considering travel time and delay, and we predicted the number of crashes for each possible route. The results of the present study allow for maximizing safety or traffic operation characteristics, providing an effective tool in the management of the rural road system. The paper provides a methodology that can be transferred to other TTISs for real-time management of the road network.

scholarly journals An advanced planner for urban freight delivering

2018 ◽  
Vol 4 (48) ◽  
pp. 27-40 ◽  
Author(s):  
Antonio COMI ◽  
Berta BUTTARAZZI ◽  
Massimiliano SCHIRALDI ◽  
Rosy INNARELLA ◽  
Martina VARISCO ◽  
...  
Keyword(s):  
Real Time ◽  
Web Application ◽  
Road Network ◽  
Time Windows ◽  
Mobile App ◽  
Delivery Time ◽  
Time Data ◽  
Urban Freight ◽  
The Road ◽  
On The Road

The paper aims at introducing an advanced delivery tour planner to support operators in urban delivery operations through a combined approach which chooses delivery bays and delivery time windows while optimizing the delivery routes. After a literature review on tools for the management and the control of the delivery system implemented for optimizing the usage of on-street delivery bays, a prototypical tour delivery planner is described. The tool allows transport and logistics operators to book the delivery bays and to have real-time suggestions on the delivery tour to follow, through the minimization of the total delivery time. Currently, at development phase, the tool has been tested in a target zone, considering the road network and time/city delivering constraints and real-time data about vehicles location, traffic and delivery bay availability. The tool identifies the possible tours based on the delivery preferences, ranks the possible solutions according to the total route time based on information on the road network (i.e. travel time forecasts), performs a further optimization to reduce the total travel times and presents the user the best alternative along with the indications of which delivery bay to use in each delivery stop. The developed prototype is composed by two main parts: a web application that manages communication between the database and the road network simulation, and, an Android mobile App that supports transport and logistic operators in managing their delivering, pre trip and en route, showing and updating routing based on real-time information.

A Stochastic Frontier Approach Applied to Farms to Selected Andean Countries

2021 ◽  
Author(s):  
Carlos Otávio Freitas ◽  
Felipe de F. Silva ◽  
Mateus C. R. Neves
Keyword(s):  
Travel Time ◽  
Road Network ◽  
Stochastic Frontier ◽  
Road Density ◽  
Stochastic Frontier Approach ◽  
Technical Inefficiency ◽  
The Road ◽  
Andean Countries ◽  
Stochastic Production ◽  
On The Road

In this paper, we estimate a stochastic production function for Bolivia, Ecuador, Colombia, and Peru to investigate whether road infrastructure affects farm technical inefficiency. We use agricultural censuses of Colombia and Bolivia in 2013 and 2014, respectively; national agricultural surveys in 2017 of both Ecuador and Peru; and data on the road network and travel time to the nearest town with 50,000 inhabitants or more. Our main findings are that irrigation increases the value of production and road network decreases farm technical inefficiency, that is, road density (travel time) increases (decreases) farm technical efficiency.

scholarly journals GIS Based Services Using Network Analysis of Khartoum North

2020 ◽  
Vol 5 (7) ◽  
pp. 1375-1381
Author(s):  
Mohamed Elamin Ahmed Babiker ◽  
Hajir Khaild Elshaikh Idris
Keyword(s):  
Information System ◽  
Network Analysis ◽  
Travel Time ◽  
Geographical Information System ◽  
Road Network ◽  
Service Area ◽  
Geographical Information ◽  
Optimal Service ◽  
Present Study Attempt ◽  
Potential Use

A Geographical Information System (GIS) utility, such as network analysis is a tool used to solve common network problem, This study is intended to use GIS as a tool of analyzing. integrating and displaying information. the overall activities of the work were concentrated around sub area selected as the study site in the Khartoum north city (Khartoum ) of main capital, Sudan .To demonstrate the use of road network analysis, this project focused on determining the best route between too destinations , the closest facility from a given incident , and a service area for a given facility . The present study attempt to analyze the potential use of network analysis in defining the optimal service area of different services such as hospitals, schools and university of Khartoum north. Generally for the purposes of this project ,distance is taken as impedance in order to find the best route and the closest facility and that of travel time is taken as impedance in order to find the service area.

scholarly journals HOV access location analysis at Erin Mills Parkway and Highway 403

2021 ◽  
Author(s):  
Makael Kakakhel
Keyword(s):  
Travel Time ◽  
Road Network ◽  
Buffer Zone ◽  
Simulation Software ◽  
Location Analysis ◽  
The Road ◽  
Micro Simulation ◽  
Speed Change ◽  
On The Road ◽  
Hov Lanes

High Occupancy Vehicle (HOV) lanes are one [of] the most commonly used methods to reduce the number of vehicles on the road network. HOV provides a faster and reliable option to single occupancy vehicles, thus inducing more people to car pool. The success of HOV lanes depends on the reduction of travel time and increased trip reliability. Therefore, in order to reduce travel time and improve trip reliability this study emphasizes on the HOV access location relative to an access ramp. In this case we have chosen the interchange at Erin Mills Parkway and Highway 403 as a subject of our study. The study was divided into 2 parts, namely the field review and simulation of different options in order to optimize the HOV access location. During the field review it was found that 75% of the vehicles are in a position to enter the HOV lane 200m upstream of the exiting access location. Also, approximately 35% of vehicles were jumping the buffer before the start of the access location. In the second part of the study a total of 6 options were explored using VISSIM micro simulation software. The results of the simulation showed that the access location 200m downstream of the Speed Change Lane with a total access length of 600m is the best option. In addition, it was found that buffer separated HOV lane operate better then HOV lane without a buffer zone. This can be attributed to the increase of HOV lane for short trips, which increases the traffic volume on the HOV lane.

Sign in / Sign up

Export Citation Format

Share Document