Fourth tutorial

This Wednesday, we met Simon in his office. First, he taught us how to work the Movsim with the instructions. Then we discussed about the software we will work out and Simon gave an example code to show us how to connect the examples code in the Movsim. He advice us write our own code for junction simulation.

Wenlong and Kegong will focus on the code in this week. They try to use C++ or Mat-lab to build up the model of junctions. Additionally, the rest two member is going to summary the Scoot system and apply the Scoot idea in our own project. By the way, Simon lent us a book named Traffic Flow Dynamics, which helped a lot on mathematical modeling. 

The last blog, we mention the results of data collection. And the good news is yiwei have present it on a prize, including all the junctions on map and the figure of traffic flows, time gap and corresponding ratio of travel conditions.

 In further analysis, the speed-density of target road will be present, Genguo and Yiwei will try to match the traffic model to the current data about speed，density and Saturation flow, which is not present yet.

  

Traffic data collection

16th Feb, 2014

Gengguo and I planed to collect traffic data yesterday. However, it shucked by a heavy rain. And today, we walking alone the Brownlow hill street and recorded data for three cross-street.

The target simulation street is Brownlow hill street. We begin with one of the starting point, which is perpendicular with lime street. The information related to traffic light time gap, traffic flow and ratio of bus was recorded. By the way, all the information is recorded on Sunday afternoon and the traffic flow of branch road were also included. Moreover, each set of data is count for twenty minutes, which was not accurate or reliable enough but could achieve on the simulation first. 

In future research, more relevant data will be collected, especially on the weekday rush time. The results and analysis of these data will present as a table and figure in the next blog. 

Third tutorial

14th Feb 2014

This week, our group was stuck on the process of virtual machine. Kegong and rest three of our group member has a small tutorial on this Wednesday, but some misunderstanding on the setting and missing core vdi file give us very big trouble.

Finally, today we solve these problem, and with the unzip of target file, we could run the movsim on our own computer.

In other aspect, last week, Gengguo, Wenlong and I compare java code with routing mode and ramp mode. We try to figure out and understanding the main function and connected with traffic light and speed limited system. Tomorrow, Gengguo and I will going to brown hill(target street). And obtain the relevant information of traffic light position, time gap, cars flow and speed limited as parameter.

Second week tutorial

7th Feb, 2014

This is the second week for our project. In this week, according to the plan, We have basic awareness on the function of scoot system. Besides, we choice the cross street of Brown Hill and lime street to be the traffic simulation target.

However, we met several challenges when we try to edit and run the Movsim for traffic simulation. To be more specific,in this week, our project team has a considerable progress on the understanding of Movsim. We view all the current Movsim examples, such as ringing road, cloverleaf, speed limit, traffic light and etc. We also download the corresponding java code file. It is supposed to refer the real road condition to achieve the simulation in Movsim software. Meanwhile, we have trouble on achieving the code editing. And today, in tutorial, we discuss these problem to our supervisor prof Maskell whom provide us a significant help on software support. The functional software as virtual-box and java-Development Kit  were mentioned. In addition to this, he also gave us a brief guide on java coding.

After the tutorial, we have discuss the next week plan of group project. Kegong will download and give all the software support, which include the build up Movsim in virtual-box. Wenlong, Yiwei and Gengguo will focus on the coding, which covered road simulate, cars flows and traffic light parameters.