scholarly journals Ensuring the integrity of the road network as the key to solving the problems of highway capacity in cities

2021 ◽  
Vol 34 (01) ◽  
pp. 103-111
Author(s):  
Arkady V. Zakharov ◽  
Tatiana R. Zabalueva
Keyword(s):  
Traffic Congestion ◽  
Road Network ◽  
Large City ◽  
Small Rivers ◽  
Highway Capacity ◽  
The Road ◽  
Traffic Jams ◽  
Surrounding Areas ◽  
Bridge Building ◽  
The City

Broadband highways are being built in major cities around the world to combat traffic congestion. At the same time, existing buildings are demolished or powerful overpasses are raised above them. However, it often turns out that newly created highways quickly exhaust their capacity, and traffic jams are formed on them again. This situation indicates that increasing the capacity of the highway does not solve the problem of traffic jams, but often aggravates it, since as a result of this increase, even more cars are drawn to the highway from adjacent territories, often exceeding their current capacity. At the same time, the streets in the surrounding areas are empty and their potential is not used to the full extent. This situation has arisen due to the disruption of the city road network by lengthy obstacles in the form of ravines, rivers, floodplains of small rivers, and railways. This situation can be corrected by "stitching" the streets over the gaps by building bridges and overpasses with a capacity corresponding to the capacity of the "stitched" streets. Most of the gaps fall on relatively small streets, which approach the banks of fairly wide floodplains of small rivers and streams, and this makes it advisable to build mainly small (with a span of 20-25 m) and relatively inexpensive bridges, with the number of spans sufficient to cover the floodplain and reach the levels of road surfaces of connected streets. There will be several hundred such bridges over the river barriers in a large city, for example, Moscow, and several hundred more, taking into account the required number of them over the railways, and in the end, about a thousand. It is proposed to erect bridge buildings instead of simple road bridges. Such structures combine two city functions; the first of them is transport, the second is public, residential, or economic, depending on the needs of the city and the environmental situation at the construction site. An important requirement for the second function is a quick return on the financial assets invested in the construction and income from the operation of the building acceptable to the investor. The bridge part of a bridge building should become the property of the city.

scholarly journals ANALYSIS OF THE CAUSES OF TRAFFIC CONGESTION IN THE CENTRAL PART OF THE ROAD NETWORK OF THE CITY OF ORENBURG

2019 ◽  
pp. 381-385
Author(s):  
A.V.Stepanova ◽  
A.B. Satyukov ◽  
S.A. Dergunov
Keyword(s):  
Urban Development ◽  
Traffic Congestion ◽  
Road Network ◽  
Traffic Flows ◽  
The Road ◽  
Traffic Jams ◽  
The City

In this article the analysis of traffic flows in the central part of the city of Orenburg is given, the most characteristic reasons of formation of traffic jams on city streets of Orenburg in particular are defined. In the overview, the ways to minimize traffic congestion in the form of a more dense analysis of the existing urban development are highlighted.

scholarly journals PENGARUH SUKARELAWAN PENGATUR LALU LINTAS TERHADAP KINERJA SIMPANG TAK BERSINYAL GANESHA SURAKARTA

2019 ◽  
Vol 19 (2) ◽  
pp. 133-142
Author(s):  
Gus Maelan Irfana ◽  
Nurul Hidayati ◽  
Sri Sunarjono
Keyword(s):  
Traffic Control ◽  
Traffic Congestion ◽  
Motor Vehicle ◽  
Positive Influence ◽  
Degree Of Saturation ◽  
Highway Capacity ◽  
Highway Capacity Manual ◽  
The Road ◽  
On The Road ◽  
The City

Abstract Traffic congestion in the City of Surakarta gave rise to a phenomenal figure among motor vehicle drivers, called the Traffic Control Volunteers or abbreviated as Supeltas. This Supeltas is present on the road to help organize the movement of traffic, as happened at the Surakarta Ganesha Unsignalized Intersection. This study aims to determine the influence of the existence of Supeltas on capacity, degree of saturation, delay, and queuing opportunities that occur at the intersection. The analysis was carried out using the 1997 Indonesian Highway Capacity Manual. The results showed that the intersection without Supeltas had a capacity of 3,114.03 pcu/hour and a degree of saturation of 1.47, while the same intersection but with Supeltas had a capacity of 3,136.81 pcu/hour and a degree of saturation of 1.51. These results indicate that Supeltas has a positive influence on the performance of the intersection. Nevertheless, the degree of saturation in the location increased due to the increase in traffic volume as well as increased capacity. Keywords: unsignalized intersection, intersection performance, intersection capacity, degree of saturation  Abstrak Kemacetan lalu lintas di Kota Surakarta memunculkan sosok fenomenal di kalangan pengendara kendaraan bermotor, yang disebut Sukarelawan Pengatur Lalu Lintas atau disingkat Supeltas. Supeltas ini hadir di jalan untuk membantu mengatur pergerakan lalu lintas, seperti yang terjadi di Simpang Tak Bersinyal Ganesha Surakarta. Penelitian ini bertujuan untuk menentukan pengaruh keberadaan Supeltas terhadap kapasitas, derajat kejenuhan, tundaan, dan peluang antrian yang terjadi di simpang tersebut. Analisis dilakukan dengan menggu-nakan Manual Kapasitas Jalan Indonesia 1997. Hasil analisis menunjukkan bahwa simpang tanpa Supeltas memiliki kapasitas sebesar 3.114,03 smp/jam dan derajat kejenuhan 1,47, sedangkan simpang yang sama tetapi dengan Supeltas memiliki kapasitas sebesar 3.136,81 smp/jam dan derajat kejenuhan 1,51. Hasil tersebut menunjukkan bahwa Supeltas mempunyai pengaruh positif terhadap kinerja simpang. Meskipun demikian, derajat kejenuhan di lokasi tersebut meningkat karena bertambahnya volume lalu lintas di samping kapasitas yang juga meningkat. Kata-kata kunci: simpang tak bersinyal, kinerja simpang, kapasitas simpang, derajat kejenuhan

scholarly journals Strategi Penanganan Kemacetan Arus Lalu Lintas Berdasarkan Persepsi Masyarakat

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Hilma Erliana
Keyword(s):  
Traffic Congestion ◽  
Public Perception ◽  
Market Area ◽  
Parking Space ◽  
The Road ◽  
Traffic Jams ◽  
Parking Lot ◽  
Parking Management ◽  
The City ◽  
Banda Aceh

Abstrak: Pasar sangatlah identik dengan pusat keramaian, karena pasar merupakan pusat perdagangan yang terletak di pusat kota yang sering disebut juga dengan kawasan Central Bussiness District (CBD). Karena pasar merupakan pusat keramaian sehingga mengundang banyak masyarakat untuk datang ke kawasan tersebut sehingga menimbulkan kemacetan arus lalu lintas, akibat tidak terkendalinya arus lalu lintas di sekitar pasar. Kemacetan arus lalu lintas salah satunya akibat dari tidak terkendalinya parkir sehingga membuat kondisi parkir di sekitar daerah tersebut menjadi semakin semrawut. Pasar Aceh merupakan salah satu pusat perdagangan terbesar dan yang paling berkembang di kota Banda Aceh. Semakin berkembangnya kawasan Pasar Aceh membuat aktivitas pergerakan masyarakat semakin meningkat, sehingga membuat menurunnya tingkat pelayanan jalan di kawasan tersebut,  yang diakibatkan oleh kendaraan yang berjalan lambat, parkir, pejalan kaki dan pedagang kaki lima. Pasar Aceh memiliki fasilitas ruang parkirnya. Setelah disediakan ruang parkir pada gedung Pasar Aceh (off-street parking) yang baru ini ternyata masih banyak masyarakat yang lebih memilih parkir dibadan jalan (on-street parking), sementara pelataran parkir pada gedung Pasar Aceh belum habis terisi penuh, sehingga masih terjadi kemacetan dan kesemrawutan lalu lintas yang diakibatkan oleh banyaknya pengguna jalan yang menggunakan badan jalan sebagai tempat parkir. Tujuan penelitian ini adalah : (1) mengevaluasi kinerja jalan yang terbebani oleh kendaraan yang melintasi jalan di kawasan Pasar Aceh, (2) mengevaluasi kebutuhan ruang parkir yang optimal untuk melayani para pengunjung Pasar Aceh dan (3) mengidentifikasi permasalahan-permasalahan yang timbul akibat on-street parking berdasarkan persepsi masyarakat. Sehingga diharapkan dapat direncanakan manajemen parkir yang baik untuk masa yang akan datang.Kata kunci : tingkat pelayanan jalan, permasalahan parkir, persepsi masyarakat, manajemen parkirAbstract: The market is very synonymous with the center of the crowd, because the market is a trading center located in the city center which is often referred to as the Central Bussiness District (CBD). Because the market is a center of crowds that invites many people to come to the area, causing traffic congestion, due to uncontrolled traffic flow around the market. One of the traffic jams is due to uncontrolled parking, making parking conditions around the area increasingly chaotic. Aceh Market is one of the largest and most developed trade centers in the city of Banda Aceh. The increasing development of the Aceh Market area has made community movement activities increasingly increasing, which has caused a decline in the level of road services in the area, which is caused by vehicles that run slowly, parked, pedestrians and street vendors. Aceh Market has its parking facilities. Having provided parking space on the new Pasar Aceh (off-street parking) building it turns out that there are still many people who prefer on-street parking, while the parking lot on the Aceh Market building has not been fully filled, so traffic jams still occur and the chaos of traffic caused by many road users who use the road as a parking lot. The objectives of this study are: (1) evaluating road performance burdened by vehicles crossing the road in the Aceh Market area, (2) evaluating optimal parking space requirements to serve Aceh Market visitors and (3) identifying problems arising from -street parking based on people's perception. So it is expected that good parking management can be planned in the future. Keywords: level of road service, parking problems, public perception, parking management

scholarly journals Dynamic Accessibility Analysis of Urban Road-to-Freeway Interchanges Based on Navigation Map Paths

2021 ◽  
Vol 13 (1) ◽  
pp. 372
Author(s):  
Yadan Yan ◽  
Tianzhao Guo ◽  
Dongwei Wang
Keyword(s):  
Road Network ◽  
Network Planning ◽  
Peak Period ◽  
Impedance Model ◽  
The Road ◽  
Planning And Design ◽  
Calculation Results ◽  
Travel Impedance ◽  
Surrounding Areas ◽  
The City

Accessibility is important for road network planning and design, especially the accessibility of freeway entrances and exits, which reflects the convenience of travelers using freeways and the rationality of the connection between urban roads and freeways. Based on the path information of navigation map software, a new comprehensive travel impedance model to dynamically analyze the accessibility of freeway entrances and exits was proposed. The dynamic accessibility of freeway entrances and exits in Zhengzhou was studied using the proposed comprehensive impedance model, and the calculation results were analyzed. The accessibility of freeway entrances and exits is characterized by dynamic changes; the accessibility during the off-peak evening period is the highest, while that during the morning peak period and evening peak period is lower. The results of the comprehensive impedance model are roughly consistent with reality. From a location perspective, regardless of the period of time, the accessibility of freeway entrances and exits in the central and surrounding areas of Zhengzhou is always at a lower level, and during the off-peak afternoon period, the accessibility of the eastern part of the city is notably higher than that of the western part. Additionally, the accessibility of freeway entrances and exits is closely related to the traffic status of the road network and the characteristics of regional land use. The information can provide feedback for planning road networks and provide a reference for road network planning and traffic facility design.

scholarly journals Analisis Kinerja Simpang Tak Bersinyal Jalan A.H. Nasution dan Jalan Cikadut, Kota Bandung. (Hal. 116-123)

2019 ◽  
Vol 5 (2) ◽  
pp. 116
Author(s):  
Muhammad Daryl Marta Pratama ◽  
Elkhasnet Elkhasnet
Keyword(s):  
Traffic Flow ◽  
Initial Conditions ◽  
Degree Of Saturation ◽  
Residential School ◽  
Highway Capacity ◽  
Highway Capacity Manual ◽  
The Road ◽  
Traffic Jams ◽  
Shopping Area ◽  
The City

ABSTRAKPersimpangan merupakan suatu bagian jalan yang menjadi pusat pertemuan dari berbagai pergerakan arus lalu lintas. Pada tipe simpang tak bersinyal, sering dijumpai titik-titik konflik arus lalu lintas yang mengakibatkan kemacetan arus lalu lintas terutama pada saat jam-jam sibuk. Contoh kasus terdapat di Kota Bandung, terjadi pada persimpangan Jalan A.H. Nasution dan Jalan Cikadut. Lokasi ini dipilih karena selain kemacetan yang disebabkan oleh titik-titik konflik arus lalu lintas yang tidak teratur pada saat jam sibuk, di sekitar jalan pada simpang ini juga merupakan kawasan pertokoan, pemukiman, sekolah dan juga terdapat pom bensin. Berdasarkan permasalahan tersebut, dilakukan perhitungan dan analisis data pada kondisi awal simpang, didapat nilai derajat jenuh (DS) sebesar 0,983 untuk pagi hari dan 0,937 untuk sore hari. Karena hasil perhitungan simpang pada kondisi awal tidak memenuhi syarat MKJI 1997, yaitu DS < 0,85, maka perlu dilakukan perhitungan ulang dengan beberapa alternatif agar nilai DS bisa memenuhi.Kata kunci: persimpangan, kemacetan, derajat jenuh, MKJI 1997. ABSTRACTIntersection is a part of the road that becomes the center concourse of various traffic flow movements. In the type of unsignalized intersection, there are often traffic flow conflict points which cause traffic jams, especially during rush hour. Examples of cases are in the City of Bandung, occurred at the intersection of A.H. Nasution Street and Cikadut Street. This location was chosen because in addition to congestion caused by irregular traffic flow conflict points during rush hour, around the road at the intersection this is also a shopping area, residential, school and gas station. Based on these problems, data calculations and analysis are carried out in the initial intersection condition, obtained saturated degree (DS) values of 0,983 in the morning and 0,937 in the afternoon. Because the results of the intersection calculation in the initial conditions did not comply the requirements of the Indonesian Highway Capacity Manual of 1997 (IHCM 1997), that’s DS < 0,85, it is necessary to recalculate with some alternative that value of DS can comply.Keywords: intersection, congestion, degree of saturation, IHCM 1997.

scholarly journals Flood Impact Assessment on Road Network and Healthcare Access at the example of Jakarta, Indonesia

2021 ◽  
Vol 2 ◽  
pp. 1-11
Author(s):  
Isabell G. Klipper ◽  
Alexander Zipf ◽  
Sven Lautenbach
Keyword(s):  
Traffic Congestion ◽  
Disaster Preparedness ◽  
Road Network ◽  
Road Traffic ◽  
Healthcare Access ◽  
Flood Event ◽  
Flood Events ◽  
The Road ◽  
The City ◽  
Flooded Areas

Abstract. Climate change leads to an increasing number of flood events that poses threats to a large share of the global population. In addition to direct effects, flooding leads to indirect effect due to damages of the road infrastructure that might limit accessibility of health sites. For disaster preparedness it is important to know how flood events impact accessibility in that respect. We analyzed this at the example of the capital of Indonesia, Jakarta based on the flood event of 2013. The analysis was based on information about the road network and health sites from OpenStreetMap. We assessed impacts of the flood event by comparing centrality indicators of the road network as well as by an accessibility analysis of health sites before and during the event. The flooded areas were home to 2.75 million inhabitants and hosted 79 clinics and hospitals. The flood split the road network into several subgraphs. The city center maintained its importance for time-efficient routing as well as for easily accessible healthcare but might be prone to traffic congestion after such an event. Indirect effects via interrupted road traffic through flooded areas affected around 1.5 million inhabitants and led to an increase of travel time to the nearest hospital by five minutes based on normal traffic conditions.

scholarly journals Traffic congestion propagation identification method in smart cities

2021 ◽  
Vol 13 (1) ◽  
pp. 45-57
Author(s):  
Attila M. Nagy ◽  
Vilmos Simon
Keyword(s):  
Traffic Congestion ◽  
Traffic Management ◽  
Road Network ◽  
Smart Cities ◽  
Network Data ◽  
Professional Literature ◽  
Large Cities ◽  
Traffic Jam ◽  
The Road ◽  
Traffic Jams

Managing the frequent traffic congestion (traffic jams) of the road networks of large cities is a major challenge for municipal traffic management organizations. In order to manage these situations, it is crucial to understand the processes that lead to congestion and propagation, because the occurrence of a traffic jam does not merely paralyze one street or road, but could spill over onto the whole vicinity (even an entire neighborhood). Solutions can be found in professional literature, but they either oversimplify the problem, or fail to provide a scalable solution. In this article, we describe a new method that not only provides an accurate road network model, but is also a scalable solution for identifying the direction of traffic congestion propagation. Our method was subjected to a detailed performance analysis, which was based on real road network data. According to testing, our method outperforms the ones that have been used to date.

Impact of the urban construction solutions on the safety population

2020 ◽  
Vol 17 (2) ◽  
pp. 66-73
Author(s):  
R. D. Oktyabrskiy
Keyword(s):  
Traffic Congestion ◽  
Urban Population ◽  
Road Network ◽  
Residential Development ◽  
Emergency Situations ◽  
Urban Construction ◽  
Safety Population ◽  
Peace And War ◽  
The City

The article is devoted to the justification of the need to reduce the population density in the residential development of cities. The analysis of vulnerability of the urban population from threats of emergency situations of peace and war time, and also an assessment of provision of the city by a road network is given. Proposals have been formulated to reduce the vulnerability of the urban population in the long term and to eliminate traffic congestion and congestion — jams.

scholarly journals Optimization of Evacuation and Walking-Home Routes from Osaka City After a Nankai Megathrust Earthquake Using Road Network Big Data

2021 ◽  
pp. 369-389
Author(s):  
Atsushi Takizawa ◽  
Yutaka Kawagishi
Keyword(s):  
Big Data ◽  
Public Transportation ◽  
Urban Areas ◽  
Road Network ◽  
Large Earthquake ◽  
The Road ◽  
Return Home ◽  
Flooded Area ◽  
Network Big Data ◽  
Surrounding Areas

AbstractWhen a disaster such as a large earthquake occurs, the resulting breakdown in public transportation leaves urban areas with many people who are struggling to return home. With people from various surrounding areas gathered in the city, unusually heavy congestion may occur on the roads when the commuters start to return home all at once on foot. In this chapter, it is assumed that a large earthquake caused by the Nankai Trough occurs at 2 p.m. on a weekday in Osaka City, where there are many commuters. We then assume a scenario in which evacuation from a resulting tsunami is carried out in the flooded area and people return home on foot in the other areas. At this time, evacuation and returning-home routes with the shortest possible travel times are obtained by solving the evacuation planning problem. However, the road network big data for Osaka City make such optimization difficult. Therefore, we propose methods for simplifying the large network while keeping those properties necessary for solving the optimization problem and then recovering the network. The obtained routes are then verified by large-scale pedestrian simulation, and the effect of the optimization is verified.

scholarly journals IMPROVEMENT OF THE CITY TRANSPORT SYSTEM BY MEANS OF SIMULATION

2019 ◽  
Vol 8 (6) ◽  
Author(s):  
Polina A. Buyvol ◽  
Gulnara A. Yakupova ◽  
Irina V. Makarova
Keyword(s):  
Transport System ◽  
Traffic Management ◽  
Road Network ◽  
System Analysis ◽  
Computer Experiment ◽  
Simulation Models ◽  
Traffic Lights ◽  
The Road ◽  
Transport Services ◽  
The City

The transport system plays an important role in human activities and is an integral part of the successful functioning of the urbanized area. The increasing degree of provision of urban residents with transport services should at the same time keep the environment environmentally friendly and sustainable over time. The article is devoted to the issues of ensuring the rational functioning of the city transport system based on the development and implementation of an intelligent road infrastructure management system, the intellectual core of which are simulation models of problem areas of the road network. The objective of the study is the development of tools for organizing traffic in the conditions of the rapid growth of the fleet of vehicles. Research tasks were to analyze the research in the field of traffic management, to consider methods to reduce and prevent traffic jams on roads in general and in individual sections in particular. The following research methods were used: methods of system analysis, methods of modeling traffic flows, simulation, computer experiment. Achievements: the developed simulation model can be used to conduct a computer experiment in order to select the optimal parameters for the functioning of traffic lights on a specific section of the road network of the city of Naberezhnye Chelny

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