城市道路交叉口与路段通行能力等计算方法与公式.doc

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1、计算说明一、路段通行能力与饱和度的计算说明1、通行能力计算计算路段单方向的通行能力,如“由东向西的通行能力”、“由南向北的通行能力”。 (1-1) 路段单向通行能力; 第条车道的通行能力; 车道编号,从道路中心至道路边缘依次编号; 路段单向车道数。 (1-2) 1条车道的理论通行能力,根据道路设计速度取表1-1中对应的建议值:表1-1 值 车道折减系数,自中心线起第一条车道的折减系数为1.00,第二条车道的折减系数为0.800.89,第三条为0.650.78,第四条为0.500.65,第五条以上为0.400.52; 交叉口折减系数,根据道路设计速度和路段两交叉口之间的距离由表1-2确定:表1-

2、2 交叉口折减系数 车道宽度折减系数,根据车道宽度由表1-3确定:表1-3 车道折减系数2、饱和度计算 实际流量除以通行能力。二、交叉口通行能力与饱和度计算说明1、通行能力计算 (2-1) 交叉口通行能力; 交叉口各进口的通行能力; 交叉口进口编号; 交叉口进口数,为4或3。 (2-2) 进口各车道的通行能力; 车道编号; 进口车道数。先计算各个车道的通行能力,再计算各个进口的通行能力,然后计算整个交叉口的通行能力。用专用工具计算进口各车道通行能力,按直行、直左、直右、直左右、专左、专右的先后顺序。(1) 直行、直左、直右与直左右车道的通行能力计算:需要输入的数据: 信号周期T; 对应相位的绿

3、灯时间t; 对应相位的有效绿灯时间; 对应的车流量。注意:“有效绿灯时间”项,只需设定一个不为零的数即可,建议与t相等。“车流量”项, 对直行、直左与直左右车道的计算来说,只需输入一个不为零的数即可。 对直左车道的计算来说,“车道总流量”项输入10,“车道左转流量”项输入4。 必须严格按直行、直左、直右与直左右的顺序来计算。 结果只取“通行能力”一项。 结果只是1条车道的通行能力,同一种类型的车道如果有多条,则该进口该类型车道的通行能力为计算结果乘以车道条数。人工计算公式:直行车道 (2-3) 1条直行车道的通行能力(); 信号周期(); 对应相位的绿灯时间(); 绿灯亮后,第一辆车启动,通过

4、停车线的时间(),可采用2.3; 直行或右转车辆通过停车线的平均时间(), 小型车组成的车队,取2.5, 大型车组成的车队,取3.5, 绞接车、拖挂车组成的车队,取7.5, 混和车组成的车队,按表2-1选用,为计算方便,将绞接车、拖挂车归为大型车; 折减系数,可用0.9。表2-1 混合车队的大车:小车2:83:74:65:56:47:38:2()2.652.953.123.263.303.343.42直右车道 (2-4) 1条直右车道的通行能力。直左车道 (2-5) 1条直左车道的通行能力; 直左车道中左转车所占比例。直左右车道 (2-6) 1条直左右车道的通行能力。(2) 专右与专左车道的通

5、行能力计算分三种情况:同时有专左与专右车道、有专左车道而无专右车道、有专右车道而无专左车道。 同时有专左与专右车道需要输入的数据: 直行车道总通行能力,输入前面直行车道通行能力的计算结果:1条直行车道的通行能力直行车道条数。 总流量,输入该进口车道总条数。 左转车流量,输入该进口左转车道条数。 右转车流量,输入该进口右转车道条数。注意:这里计算的结果即为该进口专用左转车道总的通行能力或专用右转车道总的通行能力,不需再乘以车道条数。人工计算公式: (2-7) (2-8) 专左车道的通行能力; 专右车道的通行能力; 同时设有专左和专右车道时,本进口的通行能力(); 左转车占本进口车辆比例; 右转车

6、占本进口车辆比例。 (2-9) 本进口直行车道总的通行能力。 有专左车道而无专右车道需要输入的数据: 直行车道总通行能力,输入前面直行车道通行能力的计算结果:1条直行车道的通行能力直左车道条数。 直右车道总通行能力,输入前面直右车道通行能力的计算结果:1条直右车道的通行能力直右车道条数。 总流量,输入该进口车道总条数。 左转车流量,输入该进口左转车道条数。注意:这里计算的结果即为该进口专用左转车道总的通行能力,不需再乘以车道条数。人工计算公式: (2-10) 专左车道通行能力; 设有专用左转车道(而无专用右转车道)时,本进口的通行能力; 专左车道左转车占本进口车辆的比例。 (2-11) 本进口

7、直行车道通行能力总和; 本进口直右车道通行能力。 有专右车道而无专左车道需要输入的数据: 直行车道总通行能力,输入前面直行车道通行能力的计算结果:1条直行车道的通行能力直行车道条数。 直左车道总通行能力,输入前面直左车道通行能力的计算结果:1条直左车道的通行能力直左车道条数。 总流量,输入该进口车道总条数。 右转车流量,输入该进口右转车道条数。注意:这里计算的结果即为该进口专用右转车道总的通行能力,不需再乘以车道条数。人工计算公式: (2-12) 专右车道通行能力; 设有专用右转车道(而无专用左转车道)时,本进口的通行能力; 专右车道右转车占本进口车辆的比例。 (2-13) 本进口直行车道通行

8、能力总和; 本进口直左车道通行能力。(3)丁字口次要道路进口只有专左与专右车道该进口通行能力等效于1条直行车道的通行能力。2、饱和度计算计算各进口的饱和度,用各进口实际的总流量除以该进口的总的通行能力。(英文版 ) easily blame, to prevent the broken window effect. Supervise the leading cadres to play an exemplary role, take the lead in the strict implementation of the and , lead to safeguard the solemni

9、ty and authority of the party discipline, ensure that the party discipline and the laws and regulations for implementation in place. Throughout the discipline in the daily supervision and management, strengthen supervision and inspection, from the thorough investigation of violations of discipline b

10、ehavior. Strengthen to key areas, key departments and key projects as well as the masses reflect the concentration of the units and departments for supervision. - strengthening supervision, discipline inspection and supervision of cadres to set an example for compliance with the and is a man must be

11、 hexyl, blacksmith needs its own hardware. Discipline inspection organs as the executor of the party discipline, and supervisor of the defenders, for its supervision must be more strictly, discipline inspection and supervision of cadres to firmly establish the awareness of Party Constitution, sense

12、of discipline and rules consciousness, politics loyalty, sense obey. Action speak Ji Ordinance to set an example of the regulations of the rule of law, strengthen supervision and accept the supervision of the firmness and consciousness, do comply with and . To firmly establish the discipline must fi

13、rst be disciplined, the supervisor will be subject to the supervision of concept, and consciously safeguard and implement party compasses party, take the lead in practicing three strict real strict, so loyal, clean, play. To be good at learning, the Constitution and the as morality, politics and bro

14、ught to fruition; to implement , do not want to, dare not, not with disciplinary ruler to supervision; to discipline a ruler, often the control inspection, and consciously in the ideological red line to draw the row Ming Good accumulation is indeed the bottom line, so that the heart has fear, said t

15、o have quit, the line has ended. Attached: indifferent to heart, calmly to the table in our life, there are many unpredictable things will happen, some good, some bad things, we cannot control is powerless to stop, but with time, you will find in life sometimes turns out to be not good, some bad thi

16、ngs finally turned out to be a good thing, but then we muddy however did not know, this is the life teach us things. 1, life can be complex, can also be simple. Want simple life of precipitation, to have enough time to reflect, to make Become more perfect. Life is the most important thing is not to

17、win, but the struggle; not to have conquered, but to have fought well. 2, the plain is the background of life. Live a plain life, give up on themselves is not a coward, but the wise answers; not disillusioned after the heart, such as ashes, but experience the storm after the enlightenment; not unrew

18、arding perfunctorily, but calm attitude of life of unrestrained self-confidence. Plain living, there is no noise noisy, no earthly troubles, more did not fill in the discontent of desire, some just a calm, a calm. 3, memory of heart will not good things to erase the, life is a When no movie, pain is

19、 a beginning, the struggle is a kind of process, death is a kind of ending. Give up this giving up is the helpless, do not give up the abandoned, do not give up this giving up is ignorance, do not give up should not give up is persistent. 4, a thing figured is heaven, think impassability is hell. Si

20、nce the living, to live better. Sometimes we because of too narrow-minded, too care around the chores and penny wise and pound foolish, not worth the candle. Some things to attract trouble and worry, completely depends on how we look at and deal with it. Dont always take everything back to things, a

21、nd dont get into a blind alley, dont want to face, dont be narrow-minded. Poke to care, is a kind of open-minded, a free and easy. 5, I am not afraid of others behind me a knife, I afraid to look back and see stab me, is my intention to treat people; I am not afraid of the truth to tell the best fri

22、end, Im afraid he turned to it as a joke to tell dont 6, when we are in a positive frame of mind, you will find many good things; and when we are in a negative state of mind, you will find many depressed things; life happy and worry, all is you of life attitude, optimistic, good luck; loss of sink,

23、Eritrea company. When you are in adversity, may wish to change a point of view to think everything over to the good Think, because good mentality decided the fate of the! 7, people are tired, rest; heart tired, calm. Grow up, mature, this society read. Tired and sad, squat down, to their a hug. Beca

24、use the world no one can sympathize with you, have mercy on you. You cry, tears is your own; you pain, no one can understand. Then you only tears to smile. 8, each people have youth,Each youth are a story, the life of the world never gets easier, I want what, wish the world all know, as has been the

25、 same; now want anything, for fear that others know, or like to lose the same. 9, the heart move, everything in the world is followed by birth, Rangrang, important thing is often the most difficult to open ones mouth, because words will reduce its importance; to let strangers people care about your

26、life in the good things, the original is not easy 10, do not blame, do not laugh at who, also dont envy who. Like a person is a kind of feeling, not like a person is true. The truth is easy to explain, I feel Is unspeakable. The best travel life is that you in a strange place found a long lost touch

27、ed. 11, happy life not in the bustling in, and in the peace of mind; no matter how many grievances, how uncomfortable, and ultimately to heal themselves or their own, others may got you to comfort, but never know your heart is how wanjianchuanxin. 12, maam, like a movie, learn to appreciate, learn t

28、o be grateful, learn tolerance, and goodness, helping others. Instead of accusing the society, as into one; and an exception is better to give than to what 13, dont envy him A sum of, dont lose your life and the life, respectively is: the former is a we experienced cannot escape in a day finally wil

29、l last minute, while the latter is our persistent, we want to cherish the memory of those people and things. 14, learn to smile, learn to strong, the world you know so many people, so many people and you are, you cannot change also cant let everyone like you, so also do not want to do. Life is too s

30、hort to go crazy to love to go to waste, to chase the dream to regret. 15, when temper, a blessing to go. A wounding elegant people, the key is to control their own emotions. With the mouth is the most stupid behavior. A control negative emotions than a can take a city more powerful water flow slow,

31、 language is expensive. People spent two years of time to learn to speak, but to spend a few years time to shut up. That is a kind of ability, that is a kind of wisdom. 16, life is not perfect, sometimes, growth is not a cry, not an eyeful of tears, there is no trace of emotion, there is no gleam of

32、 hope, no desire, no action, no static, there is only one kind of downward sinking feeling, sink A murky? 6? 7? 6? 7 sink? 6? 7? 6? 7 toward the bottom of the sink. 17, in some way, do not go, you will not know the other side scenery is beautiful. To you is not good, you do not mind too much, no one

33、 has an obligation to you; you learn knowledge, is you have weapons, you can start from scratch, but not unarmed; how do you treat people, does not represent how others treat you, if cannot see through this point, only inviting worry. 18, time is like a sponge in the water, as long as you are willin

34、g to squeeze, the total water is still there. Every life, after the ups and downs The best test of live, to life, survival and continuation, do not stop the struggle in the joys and sorrows of life on the road, so that different soul to bear life beat, acceptance of suffering. 19, indifferent to hea

35、rt, calmly in table, elegant and comfortable life, do not take what is so important. The pursuit will be disappointed; to be alive, you will have trouble. Life is the most afraid of what all want to care about, but also what all grasp is not firm, without scenery, separated populations, such as not

36、to desire, all docked in the fate of the end. Why is too rigid, the natural, to go stay not to live, let go of obsession, revel is 20, if the fate of the broken Hopes of sailing, please dont despair, the coast is still, if the fate of the withered petals of the beautiful, please do not sink, the spr

37、ing is still, life will always be endless trouble, please dont helpless, because they are still alive, is still a dream, the sun still, we still. Lost, keep memories; to get, must work to; but the most important is good to cherish their own. 21, life, select the complex, is to choose the pain; choos

38、e a simple, is choose to be happy. The complex world like aSignificance of pride. Hope is the ornate palace, outside people admiring the magnificent, living in the deep knowledge of living it to pay the price. Simple world as a simple log cabin outside ridiculed shabby, the heart is willing to go li

39、ve to know the joy. Suffering and joy is their own choice. 22, learn how to use a single powerful heart, let the past be the past, let the future come. Life is really the end of the end of an eagle is flying wings, life is constantly pursuit. Dont miss to regret, dont wait for old just miss. Time to

40、 return, seize every moment, again painstakingly again tired also Those struggling to fly. 23, life could not Yimapingchuan, even flat pavement, inevitably there will be a few pieces of roadblocks. Some of the rocks around the past, while others have to move it out. Just move others put the stone is

41、 very easy, because the stone from the appearance we can discern; difficult to myself to move away the heart of stone head. Leave time to spend with her, often reflect my heart, so as to remove your heart of stone. 24, everything does not have to be demanding, come to, everything does not have to ca

42、re about, over the past; failing to do not frown, laugh it laugh. Results Dont demand, do to; life is a simple, calm and peaceful. Always not to choose their own path and regret, life is like a train, the scenery and then the United States will retreat, the passage of time and encounter will eventua

43、lly drifting further and further away, before is always himself. 25, everyone has a weakness, weakness is true humanity. That has no weakness, a shallow person. That people think there is no weakness, mostly false. Life has shortcomings, there are shortcomings is the real life. That no one regret, o

44、r childish or numbness or Self deception. It is in tolerance of weakness and so on to accept, people live happily.Hello, everyone! I am a party member. The title of my speech is: study and implement the partys two laws, doing practical play highway. 2015 October 18, the Central Committee of the Comm

45、unist Party of China promulgated the implementation of the and Chinese Communist Party discipline and punishment regulations. We Heyuan male passers-by to respond positively to the call of the Central Committee of the party, earnestly organize the study party two regulations, truly grasp the essence and gist, and in their respective positions, to hold the bottom line of the discipline, build a strong ideological line of defense, with the courage to play, the cour

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