scholarly journals Study of Park and Ride Facilities in Cikarang

2021 ◽  
Vol 3 (1) ◽  
pp. 020-032
Author(s):  
Annisa Annisa ◽  
Leonardus Bambang Budi Prasetyo
Keyword(s):  
Public Transportation ◽  
User Satisfaction ◽  
Urban Areas ◽  
Actual State ◽  
Main Function ◽  
Toll Road ◽  
Suburban Areas ◽  
Private Vehicle ◽  
Park And Ride ◽  
In Transit

The enormous number of Cawang-Cikarang toll road private vehicles users have caused congestion in Jakarta. To reduce congestion in Jakarta, suburban areas, such as Cikarang, commuters shall utilize Park and Ride (P&R) facilities than use private vehicle to Jakarta. This study is important to give the commuters information of P&R in Cikarang, so they can make an option of their trip. P&R facility has a main function as a hub to change from private vehicle to public transportation. Observation as well as questionnaire were used to reveal findings for this study, the data results are analyzed with descriptive statistics. This study revealed that users of P&R facilities from Cikarang are generally commuters who have offices in urban areas and reside in suburban areas. The problem that occurs in Cikarang is that parking facilities in transit locations (stations / terminals / stops) have not been utilized optimally. This study aims to analyze the actual state and user satisfaction of P&R facility in Cikarang. The six locations include: (1) Cikarang Station; (2) Metland Telaga Murni Station; (3) Lemahabang Station; (4) Cikarang Terminal; (5) Capitol Stop; and (6) AO Citywalk Lippo Cikarang Bus Stop. The results showed that the majority of respondents (N=231) were satisfied (m=3.78; SD=0.99, p

scholarly journals Measuring Spatial Mismatch between Public Transit Services and Regular Riders: A Case Study of Beijing

2019 ◽  
Vol 8 (4) ◽  
pp. 186 ◽  
Author(s):  
Haitao Jin ◽  
Fengjun Jin ◽  
He Zhu
Keyword(s):  
Public Transportation ◽  
Urban Areas ◽  
Public Transit ◽  
Estimation Method ◽  
Likelihood Estimation ◽  
Urban Transit ◽  
Allocation Policy ◽  
Suburban Areas ◽  
Transit Services ◽  
A Cell

Public transit services should favor space equity, and the concern of this study is how the allocation of public transportation resources corresponds to the needs of transit users. Identifying mismatches between urban transit resources and regular transit users benefits the transportation resource allocation policy. This study introduces a location maximum likelihood estimation method and a cell space collector mechanism to explore distribution differences of regular transit riders and transit stations based on data mining. In Beijing, 5.37 million regular transit users were identified, and their first-morning transit stations were found to be within 2 km from their last transit stations used the day before. As their locations were estimated, differences in ratios of the regular transit riders to residents were found among areas. Most regular transit users were located in the suburban areas of 5–20 km from the center of Beijing, and the spatial distribution of transit stations declined from the center to the peripheral urban areas. This mismatch between public transit services and regular transit riders sheds light on urban transportation policies.

Importance-Performance Analysis in Public Transportation: Methodological Revision for Practical Implementation

2019 ◽  
Vol 2673 (2) ◽  
pp. 710-723 ◽  
Author(s):  
Alvaro Rodriguez-Valencia ◽  
Daniel Rosas-Satizabal ◽  
David Paris
Keyword(s):  
Performance Analysis ◽  
Public Transportation ◽  
User Satisfaction ◽  
Service Industries ◽  
Practical Implementation ◽  
Specific Method ◽  
Extensive Literature ◽  
Transit System ◽  
Transportation Services ◽  
In Transit

Importance-performance analysis (IPA) is a common and accepted method used by service industries to improve their service and therefore increase customer satisfaction. In public transportation, it has been adopted to assess the attributes of transit system. To analyze the practical implementation of IPA in transit user satisfaction studies, an extensive literature review was carried out to identify challenges. Unlike the “performance” dimension, measuring “importance” is challenging, given the wide variety of approaches and specific methods. For practical application, choosing a specific method in a specific approach has diverse implications. Real-world transit user satisfaction surveys of three different bus transit (sub) systems in Bogotá were used to try, test, and compare results, methods, applications, and—from a practical perspective—to identify the pitfalls, risks, difficulties, advantages, and biases of using different techniques to measure importance in relation to public transportation services. At the end of the paper, the advantages and shortcomings of different importance measurement methods are synthesized, and easy-to-implement suggestions for practitioners are provided.

scholarly journals A multiscale assessment of Red-tailed Hawk reproductive success relative to urban density and habitat type

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Justin H White ◽  
Jessi L Brown ◽  
Zachary E Ormsby
Keyword(s):  
Urban Areas ◽  
Urban Expansion ◽  
Habitat Type ◽  
Nesting Success ◽  
Arid Environments ◽  
Hatch Date ◽  
Urban Density ◽  
Landscape Characteristics ◽  
Suburban Areas ◽  
Breeding Seasons

Abstract Despite the unique threats to wildlife in urban areas, many raptors have established successfully reproducing urban populations. To identify variations in raptor breeding ecology within an urban area, we compared metrics of Red-tailed Hawk reproductive attempts to landscape characteristics in Reno and Sparks, NV, USA during the 2015 and 2016 breeding seasons. We used the Apparent Nesting Success and logistic exposure methods to measure nesting success of the Red-tailed Hawks. We used generalized linear models to relate nesting success and fledge rate to habitat type, productivity to hatch date (Julian day) and hatch date to urban density. Nesting success was 86% and 83% for the respective years. Nesting success increased in grassland-agricultural and shrub habitats and decreased in riparian habitat within the urban landscape. Productivity was 2.23 and 2.03 per nest for the breeding seasons. Fledge rates were 72% and 77%, respectively, and decreased in riparian areas. Nestlings hatched earlier with increased urban density and earliest in suburban areas, following a negative quadratic curve. Nesting success and productivity for this population were high relative to others in North America. Productivity increased in habitats where ground prey was more accessible. We suggest that suburban areas, if not frequently disturbed, provide sufficient resources to sustain Red-tailed Hawks over extended periods. As urban expansion continues in arid environments globally, we stress that researchers monitor reproductive output across the urban predator guild to elucidate patterns in population dynamics and adaptation.

scholarly journals InSAR Multitemporal Data over Persistent Scatterers to Detect Floodwater in Urban Areas: A Case Study in Beletweyne, Somalia

2020 ◽  
Vol 13 (1) ◽  
pp. 37
Author(s):  
Luca Pulvirenti ◽  
Marco Chini ◽  
Nazzareno Pierdicca
Keyword(s):  
Urban Area ◽  
Urban Areas ◽  
The Other ◽  
Spatial Average ◽  
Calibration Data ◽  
Suburban Areas ◽  
Persistent Scatterers ◽  
Optical Images ◽  
Interferometric Phase ◽  
Multitemporal Data

A stack of Sentinel-1 InSAR data in an urban area where flood events recurrently occur, namely Beletweyne town in Somalia, has been analyzed. From this analysis, a novel method to deal with the problem of flood mapping in urban areas has been derived. The approach assumes the availability of a map of persistent scatterers (PSs) inside the urban settlement and is based on the analysis of the temporal trend of the InSAR coherence and the spatial average of the exponential of the InSAR phase in each PS. Both interferometric products are expected to have high and stable values in the PSs; therefore, anomalous decreases may indicate that floodwater is present in an urban area. The stack of Sentinel-1 data has been divided into two subsets. The first one has been used as a calibration set to identify the PSs and determine, for each PS, reference values of the coherence and the spatial average of the exponential of the interferometric phase under standard non-flooded conditions. The other subset has been used for validation purposes. Flood maps produced by UNOSAT, analyzing very-high-resolution optical images of the floods that occurred in Beletweyne in April–May 2018, October–November 2019, and April–May 2020, have been used as reference data. In particular, the map of the April–May 2018 flood has been used for training purposes together with the subset of Sentinel-1 calibration data, whilst the other two maps have been used to validate the products generated by applying the proposed method. The main product is a binary map of flooded PSs that complements the floodwater map of rural/suburban areas produced by applying a well-consolidated algorithm based on intensity data. In addition, a flood severity map that labels the different districts of Beletweyne, as not, partially, or totally flooded has been generated to consolidate the validation. The results have confirmed the effectiveness of the proposed method.

What Kind of People Use Carsharing for Commuting? Case Study in Shanghai

2019 ◽  
Vol 2673 (5) ◽  
pp. 770-778 ◽  
Author(s):  
Jianhong Ye ◽  
Daoge Wang ◽  
Hua Zhang ◽  
Hong Yang
Keyword(s):  
High Frequency ◽  
Urban Areas ◽  
Descriptive Analysis ◽  
User Characteristics ◽  
Logistic Regression Models ◽  
Highly Educated ◽  
Suburban Areas ◽  
Commuting Mode ◽  
Study Offer

Carsharing as a service has been growing rapidly worldwide. Its expansion has drawn wide attention in the research community with regard to the underlying driving factors and user characteristics. Despite these extensive investigations, there are still limited studies focusing on the examination of users using carsharing as a commuting mode. The answers to questions such as what kind of people would like to use carsharing for commuting and why they frequently use carsharing to commute are not clear. To enrich our understanding of these problems, this paper aims to investigate carsharing commuters in a mega city. Specifically, it intends to integrate the actual user order data with survey data from 1,920 participants to uncover the characteristics of carsharing commuters. Data from the Evcard carsharing systems in Shanghai were explicitly analyzed. Through descriptive analysis and logistic regression models, the characteristics and critical factors that affect the choice of carsharing as a commuting mode were captured. The results show that: 1. carsharing commuters mostly live or work in suburban areas in which public transport accessibility is limited; 2. carsharing commuters are more likely to be highly educated, in a higher income bracket, and older than other carsharing members; 3. high-frequency carsharing commuters own a reduced number of private cars; and 4. those high-frequency carsharing commuters with higher income are less sensitive to the carsharing costs caused by congestion. The findings in the study offer some insights into carsharing commuters and provide some supportive information for considering policies in developing carsharing systems in urban areas.

Design of a cable-stayed footbridge adaptable to various urban areas

2019 ◽  
Author(s):  
Franco Clerici ◽  
Silvia Mirabella
Keyword(s):  
Public Transportation ◽  
Urban Areas ◽  
Local Governments ◽  
Open Spaces ◽  
Limited Space ◽  
Reduced Mobility

<p>The present paper relates to the design of a cable-stayed footbridge, composed by ready made elements and with span suitable to various urban and building areas. At present, in order to find a solution to traffic problems, local governments look for many ways to alleviate city’s main roads, increasing public transportation and designing dedicated underground pedestrian routes. Although this subways already built are not really used by pedestrians, which prefer wide-open spaces, such as skyways also designed for people with reduced mobility. In this context the described footbridge, with access ramps designed in accordance with accessibility standards, represents not only a good solution for cycle and pedestrian mobility problems, but it is also easy to transport and to be installed, due to its modular elements. The access ramps are suspended to pilons with inclination depending by the required bridge lengths and they can be assembled in different configurations in order to be well integrated also in limited space areas. Finally a particular focus is dedicated to cables, with dismountable end terminations designed to reduce transportation space and costs</p>

scholarly journals Experimental Investigation on Condition Monitoring Opportunities of Tramway Tracks

2017 ◽  
Author(s):  
Ákos Vinkó ◽  
Péter Bocz
Keyword(s):  
Urban Areas ◽  
Real Data ◽  
Actual State ◽  
Prototype System ◽  
Good Opportunity ◽  
Track Geometry ◽  
Railway Company ◽  
Transportation Modes ◽  
Deterioration Process ◽  
Instrumented Vehicle

The increasing demands for guided transportation modes in urban areas generate the need of high-frequency services. Due to the frequent services, the track deterioration process will be accelerated. Therefore, the exact knowledge of track quality is highly important for every railway company to provide high quality service level.For monitoring of tramway tracks, an unconventional vehicle dynamics measurement setup is developed, which records the data of 3-axes wireless accelerometers mounted on wheel discs of regular in-service tram. In the implementation of prototype system, the bogie side-frame and car body mounted sensors are also fitted to the instrumented vehicle to compare the efficiency of these conventional solutions with the developed arrangement. At the first test period, the instrumented vehicle works as a dedicated inspection vehicle, in order to keep the constant velocity and help to determine the influencing factors on results. Accelerations are processed to obtain the track irregularities, in order to determine whether the track needs to be repaired. Real data come from measurements taken on tram line 49 of the Budapest (Hungary) and they have been validated by comparing results to the actual state of the track provided by a track geometry monitoring trolley and visual inspection. This paper presents the developed methods used for validation and the analysis of preliminary results of the wheel discs mounted accelerometers. This vehicle dynamic measurement system is cheap to implement and no significant modification of the vehicle is required. Therefore, in-service vehicles equipped with this system may serve a good opportunity for monitoring tramway track, while it multiple passes over same track section.

scholarly journals Temporal–Spatial Patterns of Relative Humidity and the Urban Dryness Island Effect in Beijing City

2017 ◽  
Vol 56 (8) ◽  
pp. 2221-2237 ◽  
Author(s):  
Ping Yang ◽  
Guoyu Ren ◽  
Wei Hou
Keyword(s):  
Relative Humidity ◽  
Urban Areas ◽  
Late Summer ◽  
Beijing City ◽  
Near Surface ◽  
Suburban Areas ◽  
Island Effect ◽  
Different Seasons ◽  
Autumn And Winter ◽  
Beijing China

AbstractHourly datasets obtained by automatic weather stations in Beijing, China, are developed and employed to analyze the spatial and temporal characteristics of relative humidity (RH) and urban dryness island intensity (UDII) over built-up areas. A total of 36 stations inside the sixth ring road are considered as urban sites, while six stations in suburban belts surrounding the built-up areas are taken as reference sites. Results show that the RH is obviously smaller in urban areas than in suburban areas, indicating the effect of urbanization on near-surface atmospheric moisture and RH. A further analysis of relations between RH and temperature on varied time scales shows that the variations in RH in the urban areas are not due solely to changes in temperature. The annual and seasonal mean UDII are high in central urban areas, with the strongest UDII values occurring in autumn and the weakest values occurring in spring. The diurnal UDII variations are characterized by a steadily strong UDII stage from 2000 to 0800 LT and a minimum at 1500 or 1600 LT. The rapid shifts of UDII from high (low) to low (high) occur during the periods 0800–1600 LT (1600–2000 LT). The occurrence time of the peaks varies among different seasons: the peaks appear at 0700, 2100, 2000, and 0800 LT for spring, summer, autumn, and winter, respectively. Further analysis shows that large UDII values appear in the evenings and early nights in late summer and early to midautumn and that low UDII values mainly occur in the afternoon hours of spring, winter, and late autumn.

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 MANAGEMENT OF PUBLIC TRANSPORTATION PERFORMANCE MODEL BASED ON SAFETY TRANSPORTATION, PERIODIC TRANSPORTATION TEST, BEHAVIOR, AND SATISFACTION IN CIREBON CITY.

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Herry Hermawan
Keyword(s):  
Public Transportation ◽  
User Satisfaction ◽  
Human Error ◽  
Motor Vehicle ◽  
Performance Model ◽  
Urban Transport ◽  
World Health ◽  
Urban Systems ◽  
Intelligence Agency ◽  
National Police

The development of cities in Indonesia is marked by the high number of commuters (commuters) who travel between the main city and the surrounding city or district (hinterland) or between regions within a city due to an increase in population, population activities, types of services, and the relative functioning of the economy national and regional level of a country..       Transportation problems and challenges are multi-dimensional between transportation systems and urban systems, both operational, management and policy aspects. Urban transport policies that care about sustainable development in developing countries are very complex, but can be studied especially in the public transportation system because it is more possible when compared to private transport at this time.       In Indonesia, the number of motorized vehicles is increasing every year. The addition of that number in 2012 reached 10,036 million units, resulting in the population recorded in the Indonesian National Police increased 12% to 94.292 million units compared to only 84.19 million in 2011 (Kurniawan, 2013). Based on data from the National Police also stated that in 2012 there were 109,038 accident cases with 27,441 people died. Different data from the Coordinating Ministry for Economic Affairs and People's Welfare of the Republic of Indonesia states that motorcycle rider accidents have reached 120,226 times or 72% of all traffic accidents in a year. Most accident cases occur in people with lower middle economic level as motorcycle and public transportation users (State Intelligence Agency, 2013).       As released by WHO (World Health Organization), of all accidents that occur on the highway, the human error factor (human error) has the highest contribution, reaching between 80-90 percent compared to the factor of vehicle vehicle improperities ranging from 5-10 percent, as well as due to damage to road infrastructure by 10-20 percent (DG Hubdat, 2010). Vehicle facilities that often occur are less than 1 millimeter of tire grooves resulting in vehicle skid or tire breaks, brakes failing, metal fatigue resulting in broken vehicle parts, worn equipment not replaced, and various other causes. This is very much related to the technology used and the care done to the vehicle. One of the government's efforts to improve road safety is through safety vehicle action programs such as compliance with vehicle operations, organizing periodic and type test repair procedures, handling overloading, vehicle scrapping, and developing motor vehicle design that aims to improve vehicle safety technology (DG Hubdat, 2013).Keywords:Transportation Performance, User Satisfaction.

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