scholarly journals Determination of the Topography and Draining of the Site for the Benin City Bus Rapid Transit (BRT) Station

Author(s):  
S. O. Eteje ◽  
Okpeahior Akugbe Cyril

The reconciliation of engineering designs that do not have survey information, that involve accurate configuration of the proposed constructions at their respective locations on-site requires first a topographic survey to obtain the perimeter survey plan, which in turn, shows the area, shape, perimeter and orientation of the site; spot heights plan showing the existing ground levels thereby used to decide on suitable gradients and determine appropriate finished ground surface, coordinates of the turning points of outlines of the proposed constructions and their respective elevations. For that reason, this study determines the topography and drains the site for the Benin City Bus Rapid Transit (BRT) station in Oredo Local Government Area of Edo State. A topographic survey was carried out to produce topographic plans. The accuracy of the survey was computed to determine its reliability. The perimeter survey plan was plotted using AutoCAD Civil 3D Land Desktop Companion 2009 to present the area, shape, perimeter and orientation of the site. The TIN method was used for the computation of the volume of earthworks. The existing and the finished ground surfaces, vector, as well as the flow direction plans, contour plans and the 3D surface maps were plotted using Surfer 11 to show graphically the existing and the proposed topography of the site. A network of drainages was established to drain the site. The study has shown that the site can be drained in two ways, into the moat behind it and existing drainage along Obakhavbaye.

Author(s):  
Kara Todd ◽  
Freyja Brandel-Tanis ◽  
Daniel Arias ◽  
Kari Edison Watkins

As transit agencies expand, they may outgrow their existing bus storage and service facilities. When selecting a site for an additional facility, an important consideration is the change in bus deadhead time, which affects the agency’s operating costs. Minimizing bus deadhead time is the subject of many studies, though agencies may lack the necessary software or programming skill to implement those methods. This study presents a flexible tool for determination of bus facility location. Using the R dodgr package, it evaluates each candidate site based on a given bus network and existing depots and calculates the network minimum deadhead time for each potential set of facilities. Importantly, the tool could be used by any transit agency, no matter its resources. It runs on open-source software and uses only General Transit Feed Specification (GTFS) and data inputs readily available to transit agencies in the U.S.A., filling the accessibility gap identified in the literature. The tool is demonstrated through a case study with the Metropolitan Atlanta Rapid Transit Authority (MARTA), which is considering a new bus depot as it builds its bus rapid transit network. The case study used current MARTA bus GTFS data, existing depot locations, and vacant properties from Fulton County, Georgia. The tool evaluated 17 candidate sites and found that the winning site would save 29.7 deadhead hours on a typical weekday, which translates to more than $12,000 daily based on operating cost assumptions. The output provides important guidance to transit agencies evaluating sites for a new bus depot.


2012 ◽  
Vol 235 ◽  
pp. 294-297
Author(s):  
Xiao Yong Tian ◽  
Hui Yuan Jiang ◽  
Jin Zha

According the characteristics of inter-city bus rapid transit in urban circle, bus scheduling model of time division is established based on M/M/C/N/∞ queuing model that it can realize the maximum profit and meet the needs of passengers. The ideas of Simulated Annealing extending are introduced to Genetic Algorithm to construct variable fitness function, and Metropolis rule is adopted to guide the optimization process of the Genetic Algorithm.


2014 ◽  
Author(s):  
◽  
Emmanuel Olusegun Adewumi

Invariably, a high percentage of the population of South Africa depends on public transport. In order to continue to satisfy commuters in terms of comfort, travel time, reliability of service and traffic congestion, there is a need to improve the efficiency of moving passengers to reduce travel time, delay time and number of stops. In the quest for advancement and improvement in public transport, many countries now embark on Bus Rapid Transit (BRT) systems based on the successful implementation of the system by cities like Curitiba (Brazil) and Bogota (Columbia). Government departments/transport authorities are often faced with the challenge of selecting the most suitable BRT system relative to the unique features of its transport demands and urban layout. Hence, this study proposes the determination of the most appropriate BRT system for the eThekwini Municipal Area (EMA). An in-depth literature review was conducted in order to determine the most adoptable BRT system amongst median, kerb side and segregated BRT systems, taking into consideration cost implications, safety of the passengers, pedestrian crossing, physically challenged commuters, vehicle option and manoeuvres. Physical assessment and critical review of the current operating BRT systems in Johannesburg, Cape Town and Port Elizabeth in South Africa was employed in this study as well as a critical comparison among these systems. The pros and cons of the three functional BRT systems in South Africa were stated and a way forward for EMA was recommended. Lastly, an assessment of the proposed BRT system in EMA was conducted on the existing Phase 1 and the remaining three phases. The review conducted was based on route inspection, access to property, factors considered in the selection of a BRT system, demand analyses of the routes and the evaluation of Johannesburg, Cape Town and Port Elizabeth BRT systems. Guidelines were also provided for the remaining proposed BRT routes which could be adopted by the eThekwini Transport Authority (ETA) in order to enhance a better performance in EMA over the three functional BRT systems in South Africa using the aforementioned criteria.


Author(s):  
Mirna Lusiani ◽  
William William

Public transportation plays an important role in meeting people's needs for traveling. In a big city like DKI Jakarta, public transportation plays an important role in supporting the daily activities of its people. Transjakarta is one of the mass public transportation (bus rapid transit) provided by the local government for the community. One of the corridors that have the highest number of passengers is corridor 1 which serves the Blok M - Kota route. The problem that occurs is the irregularity in the scheduling system and the operation of the buses which are considered to be less than optimal, as a result, many buses are idle or buses travel but only carry a few passengers, especially during peak hours on weekdays. To solve this problem, it is necessary to conduct research that regulates the scheduling of bus arrivals at peak hours to serve a large number of passengers. The method used in this research is a simulation by determining the headway timing and determining the number of buses to operate as optimally as possible. The proposed simulation is made of 3 new scenarios and 1 proposed scenario for real-time conditions. Based on the simulation results, the determination of the headway time of 9 minutes between arrivals and 13 buses used during rush hour, from the previous one with a headway time of 4 minutes between arrivals, but the buses used are 30 buses during peak hours. This proposal given is to save bus usage and maximize the utility of the bus.


Author(s):  
A. Seghosime ◽  
J. O. Ehiorobo ◽  
O. C. Izinyon ◽  
O. Oriakhi

In Nigeria, potable water is in short supply to the greater population and where available, groundwater accounts for over 90% of the supply. Oil exploration and exploitation activities are carried out in the Niger Delta region of Nigeria and this has affected the environment in this region. However, naturally occurring traces of petroleum products in strata or petroleum losses through spillages can contaminate groundwater, thus aquifer mapping in the Niger Delta Region becomes crucial. The study involves collection, collation and analysis of relevant information and data required for successful development of groundwater in Edo state. Groundwater in Edo State occurs under different conditions in the various aquifers defined by the following geological units, namely: Coastal Plain Sands of the Benin Formation, Ogwashi- Asaba, Bende- Ameki and Imo Shale Group of the Tertiary Deposits, False-bedded Sandstones and the Nkporo Shale Group of the Cretaceous deposits and the Basement Complex Rocks which only contain groundwater in the overburden, faults and joints. From the information collated, groundwater levels are deepest in the Ishan Plateau where it is about 171 metres above mean sea level at Ekpoma. Away from the pleateau, groundwater rises southwards and northwards. At Aduwawa/Ikpoba Hill (Benin City), the groundwater level is 40 metres, at Iguiye (Lagos Road, Benin City) to the west, the groundwater level is 55 metres and at Fugar to the north, the groundwater level is 95 metres. The groundwater flow direction is from the Plateau to all other areas with higher groundwater levels. Therefore, aquifer mapping in the Niger Delta region is necessary, as it will help in assessing the availability and development methods to be adopted.


Author(s):  
Sunny Oluku ◽  
Monday Ohi Asikhia

This study assessed the geospatial impacts of sand mining activities in Benin City, Edo State, Nigeria. There are thirty five (35) burrow pits in Benin and eleven (11) were used for the study. Similarly, three (3) distinct datasets and sources were used to determine the spatial extent of environmental degradation as a result of sand mining activities in Benin City. The first data set was the 19th January, 2019 satellite imagery of each of the mining sites. This high resolution remotely sensed data was used in the determination of areal extent of the sand mining sites. The second set of data was the Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) 30meters resolution digital elevation model (DEM). The ASTER-DEM was used as an input dataset in the determination of the volume of sand that have been mined in each site and compilation of three – dimensional model (3D Model) of each the sand mining site. The third set of data was the geographic coordinates of the mining sites. They were sourced from field survey with the use of global positioning system (GPS).The study concluded that sand mining and development cannot be entirely separated but mining should be done in a sustainable manner with less of environmental degradation. It is recommended that miners should be regularly sensitized by the government on environmental degradation and about the fragile nature of the environment. The government regulatory body should ensure that Environmental Impact Assessment (EIA) is carried before mining pits are approved for mining activities. Also illegal burrow pits should be short down to check environmental degradation.


CICTP 2017 ◽  
2018 ◽  
Author(s):  
Hua-Wei Gong ◽  
Wen-Zhou Jin ◽  
Xiao-Dong Zang ◽  
Qiang Luo

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