2003-07-23 CC Packet - Laserfiche WebLink

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07/14/2003 MON 11:00 FAX iii 008/008 Work Proaram 'Trl-City Coalition'. I-3s:E Coniclor Study June 25, 2003 Page 4 suggested that each of the agencies pTOvide a list of its proposed or recommended improvements and that they also be ssnt to the two coundes for development onto a single map. 9. Sj!stem Analysis At this poinlt the work in the study becomes more involved and intensive. Tho data which has been collected is easily retrievable and the work can be spread amongst the various ~cies. A regional traffic forecast model for the area can be used as a base. However, it needs to be modified for the progrmnme.d. improvements of the various agencies. Thus, the base for the f\nnre smdy would be a "no build" system along with committed or programmed improvements. U this system varies from that used in the transportation model, adjostments need to be made and the model run once again to obtain the base information. Once tho model is ron, a level of se1'Vice can be established for the various roadways and. to some degree. various intersections to determine the system concerns and problems in the forecut year. At this time, it ia important to redefine the issues and concerns and to evaJual:e the extent of the problems as defined in Item No. 3 in the work program. n is anticipated that a few roadways will be over capacity which should not be a surprise given the anticipated growth in the: area. The purposes and needs can be reviewed for the study. Some priorities can be established for elements in the study. Tb1s essentially redefines the problems and sets forth the program for the seconcl phase of the study. The agencies>> or a task force or consultant, can review the roadway systems for the four levels of service and operation. A hypothesis can be established for each of the reasons for the poor level of service segments. The roadway s~tcm could be adjusted using some general concepts. These could include adding interchangest widening roads, Jelocating Or improving sections of road, or forcing diversion through the model to determine impacts on other segmenti of the system. It may be m:cCSBary to "ran selected links" on I~3SB, 1-3~W or CSAB 14 to detel1Tline the flow of traffic to and from the critical areas. Once the various hypotheses have been developed, the transportation model should be rerun with adjustm.ents placed. in: the system. The levels of service should be calculated from the resulting volumes of the second study and the system should be reartalyzed. Again. any remaining poor levels of service should be reviewed and addressed. If there are none>> the system changes based on the hypothesis that have been placed into the system should be evaluated for implementation. 10, Evaluation At this point, Phase I of the progmm has been fairly well completed and Phase n will be dependent upon what has been learned. The staffs of the various agencies, including the