高速公路收費(fèi)口的優(yōu)化設(shè)置
摘 要
如今，隨著人們的生活節(jié)奏逐漸加快，高速公路上車輛的不斷增多，高速公路收費(fèi)亭數(shù)量的最佳設(shè)計(jì)方案在縮短司機(jī)的等待時(shí)間、減輕交通擁塞狀況以及贏得司機(jī)滿意度等方面起著舉足輕重的作用。本文主要針對(duì)這1實(shí)際情況建立數(shù)學(xué)模型，來(lái)解決相關(guān)的問題。
根據(jù)實(shí)際情況，本文給出了1個(gè)合理且可行的隨機(jī)模型。在模型中，本文首先根據(jù)收集的數(shù)據(jù)計(jì)算出其收費(fèi)口在單位時(shí)間里到達(dá)的車輛數(shù)和每1輛車的服務(wù)時(shí)間所服從的分布，然后把整個(gè)處理過(guò)程劃分成4個(gè)主要部分：輸入過(guò)程，排隊(duì)規(guī)則，服務(wù)方式，輸出過(guò)程。既然到達(dá)車輛的數(shù)量服從泊松分布，服務(wù)時(shí)間服從負(fù)指數(shù)分布，在等待服務(wù)的.車輛遵循先來(lái)先服務(wù)的規(guī)則下，那么，本文通過(guò)M/M/K ,M/M/1及相關(guān)其他方法計(jì)算出車輛在收費(fèi)站等待的概率以及包括等待時(shí)間和服務(wù)時(shí)間的總時(shí)間期望值，在保證最短等待時(shí)間的條件下得到高速公路收費(fèi)亭數(shù)量和服務(wù)人員的服務(wù)速率的最佳設(shè)計(jì)方案。
最后，本文提出了1些設(shè)置高速公路收費(fèi)口的收費(fèi)亭數(shù)量和提高服務(wù)人員服務(wù)速率的建議，比如采用更先進(jìn)的服務(wù)設(shè)備來(lái)縮短服務(wù)時(shí)間等。
關(guān)鍵詞： 擬合檢驗(yàn)法；負(fù)指數(shù)分布；泊松分布；[M/M/1]：[ /FCFS]模型；[M/M/4]：[ /FCFS]模型
Abstract
Nowadays , along with the accelerating of the people’s life rhythm as well as the increasing of vehicle on the highway , the best design program of the number of the highway fare charging reception plays an important part in shorting drivers’ waiting time , lighting traffic crowed and wining the drivers’ satisfaction . This essay majoring aimed at the practical circumstances of establishing mathematics model to solve the related problems .
According to the actual situation , this essay have produced a reasonable and feasible probabilistic random model . As for the model , First , according to the collecting data , this essay calculate the distribution of the quantity of vehicles arriving in the unite time and the time of each vehicle’s service time , Then recognize the whole disposing process as four major parts : the import course ,lining up rules , the service way , the export course . since the number of the arrived automatics should comply with the Poisson’s distribution and the service time with Negative exponent , and with the obedience of the waiting-for-service automatics to the rule of first come first serviced . in that case , due to M/M/K , M/M/1 model as well as another methods . this essay can infer the rate of vehicle for waiting , the total expecting time of waiting time and service time . Ensuring the shortest time for waiting , we need to mare the best design program for the number of highway fare charging reception and service ration of workman .
At last , this essay offer some suggestion on improving the service ration of workman . such as , adopting more outstanding service equipment to shorten the time for service .
Keywords: Fitting inspection method ; negative exponent distribution ; Poissons distribution ; [ M/M/1 ]: [/FCFS ] model ; [ M/M/4 ]: [/FCFS ] mode
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