Object-Relational DBMS for Packet-Level Traffic Analysis: Case Study on Performance Optimization

2006 ◽  
Author(s):  
M. Siekkinen ◽  
E.W. Biersack ◽  
V. Goebel
Keyword(s):  
Performance Optimization ◽  
Traffic Analysis ◽  
Object Relational

scholarly journals Unmanned Aerial Vehicle-based Traffic Analysis: A Case Study to Analyze Traffic Streams at Urban Roundabouts

2018 ◽  
Vol 130 ◽  
pp. 636-643 ◽  
Author(s):  
Muhammad Arsalan Khan ◽  
Wim Ectors ◽  
Tom Bellemans ◽  
Yassine Ruichek ◽  
Ansar-ul-Haque Yasar ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Traffic Analysis ◽  
Aerial Vehicle

scholarly journals Application-level Performance Optimization: A Computer Vision Case Study on STHORM

2014 ◽  
Vol 29 ◽  
pp. 1113-1122 ◽  
Author(s):  
Vítor Schwambach ◽  
Sébastien Cleyet-Merle ◽  
Alain Issard ◽  
Stéphane Mancini
Keyword(s):  
Computer Vision ◽  
Performance Optimization ◽  
Level Performance

scholarly journals The Effect of the Size of Traffic Analysis Zones on the Quality of Transport Demand Forecasts and Travel Assignments

2018 ◽  
Author(s):  
Mehmet Fatih Altan ◽  
Yunus Emre Ayözen
Keyword(s):  
Regression Model ◽  
Traffic Analysis ◽  
Model Parameters ◽  
The Public ◽  
Employment Density ◽  
Exponential Regression Model ◽  
Demand Forecasts

In this work we have studied the selection criteria for traffic analysis zones and the effects of their size and number on the model’s forecasting capabilities. To do so we have focused on the corridor of İstanbul’s Kadıköy-Kartal Metro Line and evaluated the consistency of demand forecasts and travel assignments versus actual measurements under different sizes of the Traffic Analysis Zones (TAZ). Significant improvements in model accuracy were observed by decreasing the zone size. Specifically, studying the public transport network assignments for the metro line when increasing the number of traffic analysis zones from 540 to 1,788 the root mean square error (RMSE) of forecasted vs. actual station-based counts was reduced by 23%. Subsequently, the study used population density and employment density as independent variables for the determination of the optimal radius for the 1,788 zone area, and applied an exponential regression model. Appropriate model parameters were derived for the above case study. The regression model resulted in R2 values over 0.62.

scholarly journals An Empirical Framework for Intersection Optimization Based on Uniform Design

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Ying Zhang ◽  
Daniel Jian Sun ◽  
Alexandra Kondyli
Keyword(s):  
Performance Optimization ◽  
Uniform Design ◽  
Signalized Intersections ◽  
Simulation Software ◽  
Practical Implementation ◽  
Control Delay ◽  
Software Packages ◽  
The One ◽  
Entire Network

Operational performance optimization of signalized intersections is one of the most important tasks for traffic engineers and researchers. To compensate for the limitations of practical implementation, simulation software packages have been widely used to evaluate different optimization strategies and thus to improve the efficiency of the intersections as well as the entire network. However, for the existing optimization studies on signalized intersections, the relationships among various optimization measures and the combination of strategies have not been fully investigated. In this paper, uniform design experimentation was introduced to combine different optimization measures into strategies and achieve the minimum time cost in model construction. VISSIM software package was then calibrated and used to evaluate various optimization strategies and identify the one with the best measurement of performance, namely, control delay at the signalized intersection. By taking a representative congested intersection in Shanghai as a case study, the optimal strategy was identified to reduce the overall control delay by 27.3%, which further verified the modeling capability of the proposed method.

SAGD-Pair Performance Optimization: A Field Case Study of Recovery Enhancement

2013 ◽  
Vol 52 (02) ◽  
pp. 101-111 ◽  
Author(s):  
Kamran Jorshari ◽  
Brendan O'Hara ◽  
Ramsey Jones
Keyword(s):  
Performance Optimization ◽  
Field Case ◽  
Pair Performance

A Case Study of How Vertical Spindle Pulverizer Performance is Related to Overall Plant Performance

2006 ◽  
Author(s):  
Stephen K. Storm ◽  
Richard F. Storm ◽  
Daniel S. Storm ◽  
Sammy Tuzenew ◽  
Adam McClellan
Keyword(s):  
Performance Optimization ◽  
Electrostatic Precipitator ◽  
Environmental Control ◽  
Heat Rate ◽  
Field Testing ◽  
Plant Performance ◽  
Performance Improvements ◽  
Super Heater ◽  
Generation Costs

Pulverizer performance optimization is the first step to a successful combustion optimization program and the inter-relationships of the pulverizers must be considered when attempting to optimize combustion, overall unit performance, operability, reliability, and capacity. Pulverizer capacity seems to be an industry challenge while many units today are undergoing drastic fuel changes. Considering there seems to be a huge disconnect when correlating mill performance with such issues as fuel line distribution, heat rate, NOx and environmental control equipment performance, it is the intent of this technical paper to provide better understanding of how mechanical optimization & tuning of the pulverizers can yield overall improved plant performance. Low NOx firing and/or optimization of the burner belt combustion with a limited amount of furnace residence time is absolutely essential to optimizing plant performance. For example, when pulverizer performance is poor, it is also often related to not only high furnace exit gas temperatures, increased slagging and/or high LOI, but also degrading electrostatic precipitator (ESP) performance from the coarse particle ash. Furthermore, reliability of the boiler (ie. tube leaks, fouling, and slagging) can also be impacted negatively by secondary combustion and consequent super heater and re-heater tube metals overheating and/or wall wastage often occurs from non-optimized fuel distribution being delivered from the pulverizers. Whether the reason for improving mill performance is for the aforementioned items and/or perhaps simply to reduce power generation costs with improved fuels flexibility, the purpose of this case study is to review the basics of vertical spindle mill performance improvements. The data used to support this paper is from a compilation of actual field testing & tuning results. Furthermore, Storm Technologies, Inc. (STI) suggests the aforementioned steps as an effective approach to optimization.

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