The <i>HARint</i> Space: A methodology for compliant elevator traffic designs

Al-Sharif, Lutfi; Aal, Osama F. Abdel; Alqumsan, Ahmad M Abu; Abuzayyad, Mohammad A

doi:10.1177/0143624414539968

Cited by 12 publications

(14 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The theoretical base of the methods for calculating the elevator movement, including evacuation, are presented in the studies [31,32]. We use the modelling method in this article and simulate high-rise multi-storey building in the Pathfinder PC [33][34][35].…”

Section: Methodsmentioning

confidence: 99%

Estimation of evacuation time with elevator application in high-rise buildings

2018

View full text Add to dashboard Cite

The article considers elevator application as an integral part of the main evacuation path from high-rise multi-storey buildings and structures. The evacuation ways are rather long in this building type. It makes the evacuation process difficult and dangerous, and sometimes physically impossible. The combined evacuation with using of vertical transport can solve this problem. The complex of buildings of various storeys (20, 30 ... 60) was modeled in the program complex Pathfinder. We determine and compare the values of the evacuation time for different health categories people during movement on stairs and with particular elevator use. The percentage of acceleration of evacuation is given. It is shown that evacuation along the staircase develops as a linear function. The necessary of the joint stair-lift evacuation method increases with the height of the building. We offer the human flow ratios for evacuating people in simulated buildings (20, 30 ... 60), which is made taking into account the various mobility categories.

show abstract

Section: Methodsmentioning

confidence: 99%

Estimation of evacuation time with elevator application in high-rise buildings

2018

View full text Add to dashboard Cite

show abstract

“…5. Using the value of the arrival rate for each sector and the number of passengers boarding the elevator car, the AWT for each sector is calculated using the formula shown below (defined and derived in Al-Sharif et al 35 and Al-Sharif 36 ):…”

Section: Procedures For Sectoring Building Design At Constant Arrival mentioning

confidence: 99%

Comprehensive analysis of elevator static sectoring control systems using Monte Carlo simulation

Al-Sharif

Yang

Hakam

et al. 2018

Building Services Engineering Research and Technology

Self Cite

View full text Add to dashboard Cite

For a long time, there was no action that a group controller could take during incoming traffic conditions other than returning the elevators back to the main entrance and opening their doors. Passengers would arrive in the main entrance and board the first available elevator car. However, in the early 1990s, sectoring was introduced during incoming traffic conditions. Sectoring is the soft division of the building into groups of (usually but not necessarily contiguous) floors, usually of equal populations. One or more elevators are assigned to a sector. The allocation of the elevator(s) to a sector can either be fixed (static sectoring) or variable (dynamic sectoring) within consecutive round trips. In addition, the size and composition of the different sectors can be static or dynamic. Sectoring is thus a powerful tool in dealing with peaks of incoming traffic demand. However, most of the analysis carried out to understand the effects of sectoring on the performance of the elevator traffic system has been based on simulation only. This paper presents a comprehensive calculation-based analysis of static sectoring control for incoming traffic as a control tool. The analysis is based on the approach of progressively increasing the number of sectors in a building, starting from a single sector (i.e., no sectoring) and proceeding to full sectoring (where the number of sectors equals the number of elevators in the group) and even increasing the number of sectors up to the total number of floors above the main entrance (which has been given the new term: super-sectoring). An analysis is carried out in each case showing the handling capacity, car loading, average waiting time, and average traveling time. Practical application: This paper allows a control system designer to adapt the actions of the controller to the change in passenger arrivals. The control can detect the intensity of passenger arrivals and adjust the number of sectors to suit such an arrival intensity. The aim would be to maximize the handling capacity of the system or minimize the car loading.

show abstract

“…The design of conventional elevator traffic systems is well established, using both calculation and simulation. [1][2][3][4][5] Much interest has been generated recently in more complicated and flexible elevator systems that are two dimensional and thus have two degrees of freedom. 6 For example, the building fac¸ade can be thought of as a vertical plane on which elevator cars move both horizontally and vertically.…”

Section: Introductionmentioning

confidence: 99%

Traffic analysis of a three-dimensional elevator system

Al-Sharif

Hammoudeh

2017

Building Services Engineering Research and Technology

Self Cite

View full text Add to dashboard Cite

This article presents an overview of the concept of a hypothetical three-dimensional elevator system in extra-large buildings. The term three dimensional is used in this context in order to contrast the system with current conventional one-dimensional elevator systems that move bi-directionally in a dedicated vertical shaft; or two-dimensional elevator system that moves in a plane (e.g. in x-horizontal direction and z-vertical direction). The hypothetical three-dimensional elevator system presented in this article assumes that the elevator car can travel in all three directions (but obviously not at the same time). The proposed system comprises a vertical main shaft that allows elevator cars to travel to the required floor, and then to travel in two dimensions in a horizontal plane at the level of the required floor along a network of horizontal shafts in both x- and y- directions. Each elevator car is dispatched to one floor only in each round trip. This is more efficient as it removes the need to visit more than one floor in each journey, but relies heavily on the use of destination group control systems (in order to allow the allocation of the passengers destined to the same floor to the same elevator car). The article presents the general overview of the suggested system using sketches and then derives equations for calculating the round trip time for the elevator car. The Monte Carlo Simulation method is then used to verify the correctness of the derived equations. Practical application: This manuscript provides a high level overview of the possible arrangement of a three-dimensional elevator traffic systems in a very large building. It can be used by architects to explore the possibility of employing a three-dimensional elevator system in a large building and checking its feasibility.

show abstract

The HARint Space: A methodology for compliant elevator traffic designs

Cited by 12 publications

References 8 publications

Estimation of evacuation time with elevator application in high-rise buildings

Estimation of evacuation time with elevator application in high-rise buildings

Comprehensive analysis of elevator static sectoring control systems using Monte Carlo simulation

Traffic analysis of a three-dimensional elevator system

Contact Info

Product

Resources

About