دراسة تأتير بودرة حجر البازلت على خواص الخرسانة
مقال في مؤتمر علميالـــــــــــــــــــــــــملخص
أح وف أن م ع ال اء، وم وال سة ال ال ه ة في م ه م ال العل ة م سان الإضافات ال تع
سعى ل عام ، ولق ة سان آت ال في لل ال ة للع ادة ال ت الإضافات ال ا م
ة، مع ارد ال لى لل ار م ق إس ل إلى ص ول لل ال في مع اع ال ن في ق اص الإخ
فادة ورة الاس ار إلى ض ه الأن ج ا ت حاول ا ال الات، و في ه ى ال ي الهائل في ش ق ر ال ال
اء مها س ي تق ة ال ي ا الع ا ات وال ان للإم ا ل، ن ل الأم ال ارها اولة إس ة وم ارد ال ال م
ة. ة أو ال اد الإق
درة ة ب جه على ه ه لإخ ا ت ال ازل ال ام إضافة مادة ح إس اول م ا رسة ت ه ال ه
على اع ادر لا ت ه ال ل ه ام ل إن إعادة الإس ل ، ح قل أو أقل مة الاس رجة نع ة ب ناع
ة اد الأول ة ال ال ن ها في إس فادة م الإس ا في م ، و أ ة ف ارد ال ال حفا
د رة إلى ل ب ن على ش ال ازل ل ال اس ة. أ ة العاد رتلان ة ال سانة الإس مة في ال ال
تق ت ون إضافات، ح ة ب ج ة ال ل ال ائج ومقارنة ال ة الاس ن ه 15 % م ل ن ما
ة ل قابل ي ت ة وال ل ع ا ا رت ال الاخ د م ء ع إج ا ة سانة العاد ال خل ائ ائل على خ ه ال ه
رة ا درجة ال ار) وتأث (الان اش ال غ ة ال ، ق غ ة ال اص، ق ة الام ل، ن غ ال
اح امها ب ة إعادة اس ان م ات و فا ال ع م ا ال ه فادة م الاس ة و م ائج م ل ل ص ولل
. الاس ها مقارنة لف لقلة ت ة و ذل سان ات ال ل في ال ئي للإس يل ج ك
رجة ضها ل تع ع ل و ق غ ى 15 % ا زدت مقاومة ال ة الإحلال ح ا ا زدت ن ل أنه ال ج و ي
اء. اص لل ة إم وأقل ن اش م غ أعلى مقاومة ش ل ة، و ل 100 درجة م رة ت
خالد محمد عمرو أمحمد، (12-2020)، جامعة النجم الساطع - المؤتمر الدولي السادس - حالة الخريطة: جامعة النجم الساطع، 1-10
Pedestrian Gap Acceptance and Crossing Decision outside Crossing Facilities along Urban Streets in Malaysia: A Case Study of Rughaya Street, Batu Pahat, Johor, Malaysia
Journal ArticleAbstract
Walking considered as one of the safest modes of
travel available, sustainable to human society as well as
environmentally beneficial. In this context, the aim of this
research is to investigate pedestrians’ traffic gap acceptance
and crossing decision for Mid-block Street crossing in urban
areas in Malaysia. Pedestrian crossing behaviour at
Rughaya Street has been examined in terms of the decision
to cross or not the street and size of traffic gaps accepted by
pedestrian, as well as the related contributing factors. A
field study was conducted to collect the data of pedestrians’
decisions under real mix traffic Condition using video
camera on a typical unsignalized urban street section. JPEG
files were obtained from video recording by using Snapshot
Wizard software. The data extracted included traffic
characteristics such as traffic size, traffic speed, etc.
pedestrian individual characteristics such as gender, in
addition to individual behavior such as waiting, frequency
of attempt, etc.). Furthermore, The extracted data were
used to develop and examine a pedestrian gap acceptance
model based on A lognormal regression model and binary
logistic model by SPSS (22) in order to validate the impact
of various parameters on the size of traffic gaps accepted by
pedestrians as well as the effect on the decision of
pedestrians to cross the street or not. So that the effect of
the gap accepted available and of other factors on the
decision of pedestrians to cross the street or not is examined.
These results indicate that the data set for this particular
location has a majority of male pedestrians which were
insignificant variables in both models moreover a lognormal
regression results shows that accepted gaps size depend on
traffic size, crossing distance, speed of approaching vehicle
and time spent by pedestrian at the curb waiting for a
suitable gap size to start crossing. The BL model performs
well for the reason that it captures the pedestrian decision
making process with traffic taking the relevant attributes
into consideration. According to the coefficients of BL
regression analysis equation we noticed that the illegal
parking, traffic size, traffic waiting time and gap size are the
vital attributes for the Pedestrian gap acceptance model..
Index Terms: Pedestrian crossing, gap acceptance, crossing
decision, multiple linear regression, binary logistic
regression.
Issam Omran m.f alajnaf, Moftah Masoud Almadani, Khaled Mohammad A Emhamed, (12-2016), ماليزيا: THE INTERNATIONAL JOURNAL OF ENGINEERING AND INFORMATION TECHNOLOGY, 1 (3), 18-22