types of traffic management systemardmore high school staff directory

types of traffic management system

The color of the vehicles license plate has been regarded as one of its crucial qualities because different states, provinces, or nations have different standards on what color the license plate should be [, Character segmentation-based techniques locate the locations of the characters in an image to determine where the likely plate area is in the image. ; Abu-Lebdeh, G. Real-Time Dynamic Transit Signal Priority Optimization for Coordinated Traffic Networks Using Genetic Algorithms and Artificial Neural Networks. A Survey on Activity Recognition and Behavior Understanding in Video Surveillance. Wu, Y.N. Red may also be used to indicate a stop. Sun, W.; Sun, M.; Zhang, X.; Li, M. Moving Vehicle Detection and Tracking Based on Optical Flow Method and Immune Particle Filter under Complex Transportation Environments. They are constantly updated to provide the latest information and new features to improve the driving experience. The remaining article is divided into nine sections. Each signal controls three vehicle phases. vehicle speed [m/s], trip completion flow [veh/s], and trip delay [s]. Available online: Naiudomthum, S.; Winijkul, E.; Sirisubtawee, S. Near Real-Time Spatial and Temporal Distribution of Traffic Emissions in Bangkok Using Google Maps Application Program Interface. Agent-based simulation uses microscopic modeling which explicitly simulates the behavior of individual vehicles and drivers. Singapore is a real phenomenon. It calculates vehicle movements using queues and is more tolerant of network modeling errors because it uses a coarser model for intersections and lane changes than SUMO. Kaltsa, V.; Briassouli, A.; Kompatsiaris, I.; Hadjileontiadis, L.J. 2015. The study also shows that the WCA algorithm outperformed the HS and Jaya algorithms in terms of statistical optimization results for large-scale urban traffic light scheduling problems. The findings revealed that dynamic control can be effectively employed in various scenarios to attain optimal traffic performance. WebThe Challenges of Adopting New Technology. The fuzzy control system proposed is compared to a fixed signal programmed in three traffic situations. future research directions and describes possible research applications. Regulatory signs are constructed with a white background, and red is limited to prohibition signs. A Review of Different Components of the Intelligent Traffic Management System (ITMS). It is a realistic and successful strategy for optimizing signal delays at urban intersections, Performance matrix: vehicle delay and stops. PDF files can be viewed with the Acrobat Reader. Ondruska, P.; Posner, I. ; Weerasundara, A.G.; Udugahapattuwa, D.P.D. 16. It saves time, energy, fuel consumption, and serves as a general optimizer of the interaction between traffic signals and road users. This type of simulation is faster and can be executed up to 100 times quicker than the microscopic model of SUMO. Emergency vehicles will be given a green light as soon as they approach a signal. Traffic management signs provide information to drivers, motorists and pedestrians. The modified stochastic optimization method technique, stochastic optimization method based on shuffled frog-leaping algorithm, improved network travel times by 3.5% during the middle of the day and by 2.1% during the afternoon peak. Being able to have bi-directional communication, cars, buses, trucks, trains, etc., may receive real-time triggers for adjusting their traffic behavior. ; Sharma, H. A Cost-Effective Computer Vision-Based Vehicle Detection System. Performance matrix: per capita delay, vehicle emissions, and intersection capacity, Their proposed method provides more diverse and uniform Pareto solutions compared to NSGA-II and GADST and is faster in computation when run on the same hardware. A stochastic motion model is utilized in this formulation to estimate the states at the subsequent time occurrence, and samples are iterated through time to maintain various hypotheses. The world is trying to become greener and lessen the damage of human activity to nature. In Proceedings of the 2014 IEEE International Workshop on Machine Learning for Signal Processing (MLSP), Reims, France, 2124 September 2014; pp. Boosting a Weak Learning Algorithm by Majority. Thaher, T.; Abdalhaq, B.; Awad, A.; Hawash, A. Whale Optimization Algorithm for Traffic Signal Scheduling Problem. Liu, Y.; Qiu, T.; Wang, J.; Qi, W. A Nighttime Vehicle Detection Method with Attentive GAN for Accurate Classification and Regression. Enabling certain technological advances and making them operate together brings essential benefits to urban infrastructures and their intelligent traffic management. Traffic congestion is a serious challenge in urban areas. Extended Image Differencing for Change Detection in UAV Video Mosaics. As traffic management is a safety critical system, regulatory policy and reliability testing requirements can impede the deployment of new technologies. Traffic signals, intersection spots, toll booths, and other infrastructure components can directly connect to the nearby vehicles. GMMs were used in [, ABM is a model for detecting and identifying objects that are comprised of a limited number of Gabor wavelet elements positioned in predetermined places and orientations. Data transmission. Performance matrix: reward, avg. In, Zhang, Z.; Ni, G.; Xu, Y. Equipped with intelligent recognition systems, they can do the job in seconds that 50 years ago would take weeks and months. Sun, Z.; Liu, C.; Qu, H.; Xie, G. A Novel Effective Vehicle Detection Method Based on Swin Transformer in Hazy Scenes. Data analysis. Cycle length: This is the moment when all phases are provided once in a cyclic sequence with green time. ; Bozed, K.A. methods, instructions or products referred to in the content. Hygraph (Formerly GraphCMS) Hygraph is an enterprise-grade content management system built for industry leaders and challengers. The Department of Transportation of New York generally pursues the same goals as Singapore authorities. Synthetic and real-world data experiments show that spatio-temporal multi-agent reinforcement learns the usefulness of multi-intersection traffic signals as compared to existing methods. In Proceedings of the 2022 International Conference on Innovative Trends in Information Technology (ICITIIT), Kottayam, India, 1213 February 2022; pp. Webthese types of systems, and the operations and maintenance is performed by either the toll authority or a contractor. [. Automatic road enforcement. ; Choudhary, J. The details of the hybrid metaheuristics-based traffic signal control system and a comparison to a similar method can be found in, A fuzzy logic (FL)-based traffic light control system is a more flexible option compared to traditional traffic light management, offering the ability to handle a wider range of traffic patterns at an intersection. [. Bismantoko et al. 228232. Available online: Develop Location-Based Services. In this abstract, lets discuss what a contemporary intelligent traffic management system consists of, which benefits it brings to the table, and how digital software development transforms our view of traffic solutions. Afterwards, the project team plans to release a Draft Corridor Concept Plan and a set of implementation options. Future studies should look at similar techniques. Connected vehicle projects are underway in smart cities. WebTraffic congestion is a serious challenge in urban areas. Mohamed, A.; Issam, A.; Mohamed, B.; Abdellatif, B. Real-Time Detection of Vehicles Using the Haar-like Features and Artificial Neuron Networks. In Proceedings of the 2018 IEEE International Conference on Mechatronics and Automation (ICMA), Changchun, China, 58 August 2018; pp. To test how well the proposed method works, a typical intersection in the city of Lanzhou has been chosen. It includes a mobile application and a web portal. Traffic Management System: Key Features & Benefits. Inst. ; Srivastava, S.R. The optical flow approach is very effective in locating and evaluating moving objects [, One of the most important and active fields of research in the science of CV is multi-object tracking. However, edge-based detection approaches (like HOG) may produce a high number of false alarms when the object is relatively small against a complex background, such as an aerial view of a vehicle in images from an unmanned aerial system. Disclaimer/Publishers Note: The statements, opinions and data contained in all publications are solely Weather information that can be accessed over the internet is what is meant by the term online weather data. Traffic parameters: average queue length, average maximum queue length, average number of vehicle stops. Chen et al. Some of the features of a vehicle, such as its color, texture, and shape, are examined in order to determine its detection. Smart transportation supports management, efficiency, and safety, using new and emerging technologies to make moving around a Smart Cities are Better Cities: Supporting Mobility and Inclusion. It is necessary to evaluate the entire transportation and traffic scenario. CityFlow is a route planner for managing fleets around Europe, acquired by the leading transport provider in Scandinavia. Subsequently, the legislature granted an extension to June 30, 2011. [. These ITMS applications are slowly becoming a necessary part of human life and are being used to effectively improve human quality of life issues. Kim, T.; Park, T.-H. Extended Kalman Filter (EKF) Design for Vehicle Position Tracking Using Reliability Function of Radar and Lidar. ; Strintzis, M.G. Simulator: microscopic multi-agent transport simulator (MatSim), Performance matrix: travel time, emissions, and fuel consumption. Musaddid, A.T.; Bejo, A.; Hidayat, R. Improvement of Character Segmentation for Indonesian License Plate Recognition Algorithm Using CNN. Dynamic Lane Merge Systems(DLMS) - These systems use dynamic electronic signs and other special devices to control vehicle merging at the approach to lane closures. Parameters: queue length and waiting time per vehicle. One example of this would be if an accident occurred. ; Nasir, A.S.A. One of the factors is the increased number of vehicles, which can be worked on. The implementation was carried out in two stages, the first with only Layer 1, and the second with a combination of Layers 1 and 2. Character Segmentation for Automatic Vehicle License Plate Recognition Based on Fast K-Means Clustering. Part C (Appl. The third component explains the vehicles behavior on the basis of the second components outcome. The vehicle blocks the ambient light, which consists of sunlight and skylights. The intelligent traffic management system market is available on mobile devices or connected to the seats. An HMM is used for the detection and counting of vehicles. New York City major US transportation hub. Traffic flow information is picked up by the detectors from the roadway and transmitted to the computer system for processing. [. The following links are abstracts to papers included in TRB's Transportation Research Record: Journal of the Transportation Research Board, No. Chabot, F.; Chaouch, M.; Rabarisoa, J.; Teuliere, C.; Chateau, T. Deep Manta: A Coarse-to-Fine Many-Task Network for Joint 2d and 3d Vehicle Analysis from Monocular Image. Stochastic optimization method based on shuffled frog-leaping algorithm, Modified JAYA and water cycle algorithm with feature-based search strategy, Hybrid ant colony optimization and genetic algorithm methods, Conventional ant colony optimization and genetic algorithm approaches, Hybrid simulated annealing and a genetic algorithm, Conventional simulated annealing and genetic algorithm approaches, Collaborative evolutionary-swarm optimization, Self-adaptive, two-stage fuzzy controller, Traditional fuzzy controller, fixed-time controller, and fuzzy controller without flow prediction, Combination of the neural network, image-based tracking, and YOLOv3, Video-based counting technique using YOLO, YOLO and simple online and real-time tracking algorithm, Deep reinforcement learning-based traffic signal control method, Fixed-time and actuated traffic signal control, SDDRL (deep reinforcement learning + software defined networking), Deep Q network, fuzzy inference based dynamic traffic light control systems: fixed traffic light control system and novel fuzzy model, maxpressure based dynamic traffic light control systems: max-pressure algorithm and fixed-time based dynamic traffic light control systems: fix time algorithm, Distributional reinforcement learning with quantile regression (QR-DQN) algorithm, Static signaling, longest queue first, and n-step SARSA, A multi-agent deep reinforcement learning system called CoTV, Flow connected autonomous vehicles, presslight, baseline, MPLight as a typical Deep Q-Network agent, MaxPressure, FixedTime, graph reinforcement learning, graph convolutional neural, PressLight, NeighborRL, FRAP, Greedy, independent advantage actor critic, independent Qlearningreinforcement learning, independent Qlearningdeep neural networks, A spatio-temporal multi-agent reinforcement learning approach, Max-Plus, neighbor reinforcement learning, graph convolutional neural-lane, graph convolutional neural-inter, colight, MaxPressure, Fuzzy inference system and fixed timer-based system, YOLOv3-tiny, OpenCV, and deep Q network-based coordinated system, Customized a parameterized deep Q-Network (P-DQN) architecture, Fixed-time, discrete approach, continuous approach, Zuraimi, M.A.B. Traffic surveillance, in our opinion, entails monitoring the static and dynamic properties of traffic and then examining how they influence traffic situations in real time. 19. New Technologies for Smart Work Zones - Two presentations from American Road and Transportation Builders Association 2004 National Work Zone Conference. This research involved the examination of three networks with varying levels of complexity. Incident reports are often used to discuss accidents, disturbances in traffic, or other incidents that have an effect on the flow of traffic or the safety of travelers when discussing transportation systems. A great technical team and a great partner weve been lucky to come across. For more information, please refer to Zaatouri, K.; Ezzedine, T. A Self-Adaptive Traffic Light Control System Based on YOLO. In this study, the processed information is then used as inputs in the reinforcement learning (RL) system. [, Ali, A.M.; Eltarhouni, W.I. [. The only con is the sex equel and the olfactory hiccups. In a real-world situation with 2510 traffic signals in Manhattan, New York City, MPlights travel time and throughput matrix performed better. [, Miller, N.; Thomas, M.A. The dollar value increases when the calculation includes data from the other 35 countries in this study. Wang, C.-C.R. ; Hawbani, A. Type A are works that are on the road for 12 hours or longer. A camera equipped with a GPS sensor can indicate the location of a vehicle on a network of roads. Li, H.; Wang, P.; Shen, C. Toward End-to-End Car License Plate Detection and Recognition with Deep Neural Networks. Check our Portfolio to find more cases of Vilmate cooperation on the topic of logistics and intelligent transportation. The backbone of any intelligent traffic management system is wireless connectivity throughout the citys infrastructure. In Proceedings of the 2014 IIAI 3rd International Conference on Advanced Applied Informatics, Kokura, Japan, 31 August 20144 September 2014; pp. [, Vogel, A.; Oremovi, I.; imi, R.; Ivanjko, E. Improving Traffic Light Control by Means of Fuzzy Logic. 5G IoT and the Future of Connected Vehicle. Traffic management systems: A classification, review, challenges, and future perspectives. Vilmate was glad to contribute to this effort to improve transportation management. Feature papers are submitted upon individual invitation or recommendation by the scientific editors and must receive It seeks to coordinate the operations of individual road corridors to improve mobility and safety. The cameras, due to their fixed physical location on the network, act as a location-based service (LBS). An HMM-Based Algorithm for Vehicle Detection in Congested Traffic Situations. Srivastav, N.; Agrwal, S.L. R. Tayara, H.; Soo, K.G. Type B are works that are on the road for longer than 15 minutes but less than 12 hours. 304310. ; Zhang, J. Real-Time Traffic Signal Control with Dynamic Evolutionary Computation. The second component talks about vehicle attributes and their utilization in existing vehicle-based approaches. In Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, Long Beach, CA, USA, 1520 June 2019; pp. This method helps reduce the high bias that is characteristic of ML models. The local image patches are collections of pixels in an image. 282285. 11901199. 29612969. interesting to readers, or important in the respective research area. In Proceedings of the 2012 15th International IEEE Conference on Intelligent Transportation Systems, Anchorage, AK, USA, 1619 September 2012; pp. The United States uses dozens of different kinds of traffic signs. 4. WebWithin rail traffic management: rail traffic controller, train dispatcher or signalman Within road traffic management : traffic controller Traffic Control Management is the [, Every feature of a trajectory cluster is a distinct collection of trajectory patterns. 845848. https://doi.org/10.3390/sym15030583, Subscribe to receive issue release notifications and newsletters from MDPI journals, You can make submissions to other journals. (2) The clustering phase: similar line segments are grouped together. Using vehicles as queueing system elements might be misleading. These approaches often draw inspiration from natural phenomena such as evolutionary theory, physical processes, and bird and insect swarming behaviors to solve numerical optimization problems. ; Chong, K.T. 2023; 15(3):583. Performance matrix: queue length, vehicle waiting time, and journey Time loss. ITMS may offer real-time information on road closures and recommend alternate routes to vehicles, which helps to minimize congestion and improve traffic flow. Numerical experiments show that the hybrid model outperforms ant colony optimization and genetic algorithms in terms of wait time for different test cases. It brings us to the point of the benefits that the mentioned features of smart traffic management systems bring to the game. Essien, A.; Petrounias, I.; Sampaio, P.; Sampaio, S. A Deep-Learning Model for Urban Traffic Flow Prediction with Traffic Events Mined from Twitter. The most practical color space is RGB, although it has a problem recognizing colors. [, Tan, F.; Li, L.; Cai, B.; Zhang, D. Shape Template Based Side-View Car Detection Algorithm. 2329. No new data were created or analyzed in this study. Luo et al. Kurniawan, A.; Saputra, R.; Marzuki, M.; Febrianti, M.S. 4. Identifying and improving the most efficient corridors may increase the overall benefits, while decreasing the total system crash cost. Technological challenges aside, there are also inherent challenges in changing a citys infrastructure. Length-Based Vehicle Classification Using Images from Uncalibrated Video Cameras. The crowdsourced traffic information that is Waze is GPS navigation software that employs user-generated data to give drivers real-time traffic updates and navigational assistance. Simulation platform utilizing VISSIM and the Python language. One such algorithm has been proposed that utilizes machine learning and deep learning techniques, specifically convolutional neural networks (CNNs), for real-time traffic signal optimization. Rev. The video that has been retrieved is then ranked using the posterior probability that is calculated using Bayes prior probability theory. The reinforcement-learning-based traffic signal control system approach and a comparison to similar methods are outlined in, This hybrid method combines two separate approaches or systems to create a new and improved model. The cost of implementing an ETC system varies permission is required to reuse all or part of the article published by MDPI, including figures and tables. https://doi.org/10.3390/sym15030583, Nigam, Nikhil, Dhirendra Pratap Singh, and Jaytrilok Choudhary. The second public workshop was held on August 25, 2020. ; Si, Z.; Gong, H.; Zhu, S.-C. Learning Active Basis Model for Object Detection and Recognition. WebThere are four types of TMO: permanent, experimental, temporary and special event all of which are made by the local council under the Road Traffic Regulation Act 1984. Hamdi, S.; Bouindour, S.; Snoussi, H.; Wang, T.; Abid, M. End-to-End Deep One-Class Learning for Anomaly Detection in Uav Video Stream. Long Short-Term Memory Model for Traffic Congestion Prediction with Online Open Data. The raw visual data obtained from these sensors is then pre-processed to prepare it for feature extraction. During this step, the data is structured, checked for errors, and exposed to the required logical analysis. Web2. Get the latest product updates, downloads and patches. Coordinating, Planning and Managing the Effects of Roadway Construction with ITS Technology, Roadway Operation and Maintenance ITS Applications Resources, Minnesota DOT (MN/DOT) Intelligent Work Zone (IWZ) Resources. Another significant advantage of SVM is that they have a much smaller number of mutable parameters, which are frequently used for vehicle detection. If we suppose that the cars length is half that of the buss, the time it takes the bus to cross the signal will be double that of the car if both are moving at the same speed, which is usually the case at traffic intersections. Available online: Rajeshwari, M.; Rao, C.M. Author to whom correspondence should be addressed. It can be accomplished by developing class decision boundaries and learning posterior classification probability, which are applied in the vehicle detection process. Lenkei, Z. Crowdsourced Traffic Information in Traffic Management: Evaluation of Traffic Information from Waze. The first concern of the Roman Empire, for instance, was to build a good road to the conquered colonies (some of them are in decent condition to this day). Many ITS applications in work zones serve a combination of the above purposes. https://doi.org/10.3390/sym15030583, Nigam N, Singh DP, Choudhary J. Part D J. Automob. Bastani, V.; Marcenaro, L.; Regazzoni, C. Unsupervised Trajectory Pattern Classification Using Hierarchical Dirichlet Process Mixture Hidden Markov Model. Contrarily, the following negative aspects of handcrafted descriptors exist: (1) the design of handcrafted descriptors requires substantial prior knowledge, and such descriptors are heuristic in nature; and (2) the generalization ability of handcrafted descriptors is poor for complex object recognition tasks. Details such as the time and location of the event, the nature of the incident, the number of persons involved, and any road closures or detours that have been put in place as a result of the incident may be included in these reports. The third section discusses the characteristics of vehicles, both static and dynamic, in order to provide information about the vehicle that is used to obtain a better understanding of ITMS behavior. Find support for a specific problem in the support section of our website. 15. The surveillance system may also detect the vehicles specific characteristics, such as the vehicle logo, vehicle color, license plate number, etc. Predictive traffic planning, automated traffic signals, and transparent penalty systems for violators significantly reduce the risks of accidents. In order to be human-readable, please install an RSS reader. Handling the occlusion: There are several methods for handling occlusions, including using machine learning to learn a model of occluded objects and detect them using the learned model, or learning the object model without occlusion and detecting it with a designated mask. In 2020, the NYC DOT completed a large-scale Intelligent Transportation System (ITS) deployment, led by AT&T. To implement a true advanced traffic management solution, its far more complex than a single standalone technology, and requires a combination of connectivity, hardware, and software technologies to work together as one system. Zhu, Q.; Liu, Y.; Liu, M.; Zhang, S.; Chen, G.; Meng, H. Intelligent Planning and Research on Urban Traffic Congestion. In Proceedings of the 2020 IEEE 10th International Conference on System Engineering and Technology (ICSET), Shah Alam, Malaysia, 9 November 2020; pp. In Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition, Columbus, OH, USA, 2328 June 2014; pp. Wang, Z.; Zhan, J.; Duan, C.; Guan, X.; Yang, K. Vehicle Detection in Severe Weather Based on Pseudo-Visual Search and HOGLBP Feature Fusion. Combining Weather Condition Data to Predict Traffic Flow: A GRU-Based Deep Learning Approach. In Proceedings of the 2019 International Seminar on Research of Information Technology and Intelligent Systems (ISRITI), Yogyakarta, Indonesia, 56 December 2019; pp. The main goal was to develop a tool that would help optimize automobile routes based on different criteria: Using this tool, travel companies and private users can improve the quality of services, build more cost-effective business models, reduce fuel consumption and emissions, and, generally, enjoy all the benefits that an intelligent traffic management system provides. [. This section focuses on the metaheuristic techniques applied in the optimization of signal systems. [, The Kalman filter improves the accuracy and reliability of tracking significantly when vehicle motion is blocked by other objects, which can result in tracking failure [, A particle filters structure is based on the Bayesian formulation, which acts as its foundation. This section explains various imaging technologies that help to collect data from traffic scenes and communicate the obtained data from the traffic scenes to the approved authorities who manage the traffic conditions by better analyzing it. To control traffic signals, a central computer is used. Al-Shemarry, M.S. Commonly, right after safety goes money. Sketch-Based Modeling: A Survey. Here, we discuss different techniques that use these features. In Proceedings of the 2018 8th International Conference on Electronics Information and Emergency Communication (ICEIEC), Beijing, China, 1517 June 2018; pp. Rani, N.S. [, Li, B. Features that are not influenced by different lighting, such as SIFT and HOG, are commonly employed to reduce the impact of illumination change. Vishwakarma et al. Vehicles Detection in Complex Urban Traffic Scenes Using Gaussian Mixture Model with Confidence Measurement. The accuracy of the Vehicle License Plate Recognition system is directly correlated to the performance of the vehicle plate detection step. Vehicle Detection Using Spatial Relationship GMM for Complex Urban Surveillance in Daytime and Nighttime. In Proceedings of the 2019 2nd International Conference on Artificial Intelligence and Big Data (ICAIBD), Chengdu, China, 2528 May 2019; pp. [, Mir, A.; Hassan, A. Other types of generative classifiers include part-based models (DPMs), hidden Markov models (HMMs), active basis models (ABMs), and so on. Zeng, K.; Gong, Y.J. Visual Vehicle Tracking via Deep Learning and Particle Filter. The goal is to synthesize the existing studies and identify the most effective strategies and solutions for managing traffic in urban and rural environments in one place. 1996-2023 MDPI (Basel, Switzerland) unless otherwise stated. Trajectory-Based Scene Understanding Using Dirichlet Process Mixture Model. and J.C.; supervision, D.P.S. i believe you are great If i got more money i would buy all your package. In. WebOne type of control device is intelligent traffic lights, which use traffic data collected at the local intersection, as well as future traffic information provided by RSUs, to create a To achieve this goal and provide viable solutions, Marzieh Fathi et al. Videos taken during surveillance operations can be used to characterize the motion trajectories of moving dynamic objects (such as vehicles and people) in a given geographic scene. Today, as the economy recovers from the COVID-19 pandemic, government leaders particularly in the U.S. are preparing to New York City DOT Deploys Digi Solutions to 14k Intersections with Digi Remote Manager. The dynamic and static properties of all types of vehicles moving on the highway and road, and their qualities on the road network, should be retrieved and evaluated. The EVCWS enabled emergency vehicles to have quick access to the work zone and nearby areas by allowing them to avoid a detour and safely enter the road from the opposite direction, A siren-activated system detected the emergency vehicle and activated changeable message signs to alert drivers that an emergency vehicle was about to cross the roadway. 573577. The hybrid-based traffic signal control system approach is applied and its highlights are presented in. The goal of IC is to create an interconnected transportation system that is safe and cost-effective. RFID Based Vehicle Toll Collection System for Toll Roads. The improvements ranged from over 26% to 28% in terms of the lowest and highest total delay durations, respectively.

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