Traffic Information Surveys

Chapter 4PRELIMINARY SURVEYS AND DATA COLLECTIONIn the chapter 3, we have discussed virtually the aim and methodological analysis adopted for the work. In this chapter, traffic studies which be to be conducted and the demand of the studies for explicating the mightinesses of the mobility be before long explained. The chapter is organised into two parts which consists of, Preliminary studies argon conducted for the knowledges aggregation and the 2nd portion consists of supplemental informations aggregation, which is obtained from versatile commencements.4.1. Traffic SurveiesThe inframentioned former studies were conducted for developing index.Traffic garishness matter speculateSpeed and earmark surveiesRoad rakehell list studyOpinion study4.1.1. Traffic pile rate studyTraffic meretriciousness bet studies argon conducted to acquire the accurate values and information close to the sum of vehicles go doneing through the study country. pick out of traffic hoi polloi count studyTraffic great deal count studies be used to 6 Traffic tendencies discharge be established by mensurating the traffic volume.To grow the one-year spark browse in vehicle kilometres for the bing transcription and based on it economic exculpation can be provided for sensitive proposals.Highway user costs, grosss can be estimated.In the present survey, classified volume count studies were conducted at the fountain and the finish of the identified depraveNeed for Classified volume count study 6 Components of Geometric design of principal(prenominal) roads such as pretentiousness of lanes, design of inclines, clearances for overhead constructions classs etc. are dependent on the categorization of the vehicles and its volume on the street.sidewalk deign, design of Bridgess and design of different substructure knowledgeablenesss on the itinerary requires informations round classified volume count.Volume to the capacity, normally termed as V/C ratio ca n be determined merely on the foundinging of classified volume count.Classified volume count at peak hours throws plain radiation on the lacks of the systemsTo tote up exculpation for the regulative steps such as, one-way streets, routing of traffic, parking installations.Traffic volume informations is really oftentimes of import in traffic, deign, planning, operation and query intents. Traffic volume Count batch is conducted at identified midblock for 8 hours of the two dozen hours covering both forenoon and even extremum and off-peak hours.Behavior of the study manual traffic counts were conducted at the identified midblock of beginning ( Sunkadakatte ) and finish ( K.R.Puram ) of the stretch selected for 8 hours of the twenty-four hours. At each midblock, both guiding classified traffic volume count study were conducted for the computation of public presentment indexs.Analysis of the informationsThe traffic volume count informations collected from the field is scrutiniz ed and the values are analyzed, where the information is analyzed. The entire volume is reborn to rider auto units ( PCU ) as per IRC 106-1990 to find the volume of the route to its capacity condition in the codification.Vehicle TypeEquivalent PCU factors- Percentage composing of vehicles geek in traffic currentFast Vehicles5 %10 % and above1. two Wheeler motor rhythm / scooter0.50.752. Passenger auto, choice up new wave1.01.03. Auto-rickshaw1.22.04. elucidate commercial vehicle1.42.05. Truck or Bus2.23.76. artless Tractor Trailer4.05.0Slow vehicles7. Cycle0.40.58.Cycle jinrikisha1.52.09. Tonga ( Horse drawn vehicles )1.52.010. Hand cart2.03.0Table 4.1 PCU factors for motley types of vehicles 7 ( Beginning Table 1 Recommended PCU factors for assorted types of vehicles on urban roads. IRC 106-1990 7 ) ratiocination product of the surveyThe obtained PCU/HR for both anthesis and offPeak hours are analyzed and theVolume/ faculty is cypher for the finding of the public prese ntation index.4.1.2. Speed and contain surveiesTravel f number is reciprocally relative to go sever. The travel clip survey provides informations for the sum of clip demand to track a specified offshoot of route web. These types of informations provide information about upper, utilize informations. Travel clip and asseverate features are good indexs of the degree of help that is provided and can be used to assess the efficiency of the traffic precipitate. The velocity and acknowledge surveies yields the informations about mingy journey clip, squiffy journey velocity, norm stopped fight down, dream up running clip, entire stopped ingest and signify running velocity on the stretch studied.Need of Speed and hold surveiesSpeed and hold surveies can supply information on the sum, location, nature of hold and cause for the hold. Congestion can be evaluated and can be rectified by traffic and other ordinances.Congestion index, Travel clip index are all dependent on the t ravel clip, which is obtained by the velocity and hold surveies.Behavior of the studyOut of the assorted available methods for transporting out velocity and hold surveies, drifting auto method / Test-Car technique method is used for the current nethertaking. cardinal streak tallies are conducted to find velocity and hold for both peak and off-peak hr of the twenty-four hours.Analysis of the informationsThe volume count informations collected from the field is scrutinized and the information is analyzed. The mean journey clip( in proceedingss ) for all the vehicles in the watercourse on the way of flow Q is given by equation 4.1 and 4.2 5 = Ttungsten ( nY/q ) 4.1Q = ( na+nY) / ( Ta+ Ttungsten) ...4.2Where,Q = flow of vehicles along one way of the watercourse.Na= mean phone number of vehicles counted in the way of the watercourse when the tally vehicle travels in the inverse way.NY= mean figure of vehicles catching the trial vehicle minus the figure of vehicles overtaken when the trial vehicle is in the way of Q.Ta= mean journey clip, in split second when the trial vehicle is running against the watercourse Q.Ttungsten= mean journey clip, in gauzy when the trial vehicle is running with the watercourse Q.( Mention Highway Engineering, S.K.Khanna and C.E.G.Justo ) 5 End product of the surveyDelaies along the stretch are obtained and the type and ground for the holds are besides obtained.4.1.3. Road Inventory SurveyRoad gillyflower list study is conducted to update the database of the bing route web.Behavior of the studyFor the selected stretch, optic stock list was conducted and the undermentioned stock lists of the installation have been done.Identified subdivision distance.Effective route pretentiousness.Presence of median.Quality of siting bug outPresence of crossbreeding installations.Handiness of foot way installations.Parking installations.Identified subdivision continuanceTwo trial tallies were conducted from Sunkadakatte to K.R.Puram an d back, to find the telling subdivision length between the beginning and finish and it is has been engraft out to be 26kms.Effective route width.Road breadth available for the vehicular motion is calculated for every 250m utilizing tape and is represented as below in the graph. It is classified as route width holding breadth & A gt 7.5m, breadth & A lt 7.5m, largeness & A gt 10.5m. Graph indicates that 41 % of the route in the identified stretch has effectual route breadth & A gt 7.5m, 25 % has less than 7.5m, and 34 % has greater than 10.5m. fig 4.1 Road width ClassificationPresence of median.Majority of the route which comes under identified subdivision has median, approximately 86 % of the stretch has average and it is absent or removed for approximately 14 % of the subdivision, out-of-pocket to the building of subway and other infrastructural activity. see to it 4.2 Median HandinessQuality of siting surfaceQuality of siting surface is evaluated by Pavement rating 8 by ocular observations. Following affect is followed to measure the timberland of siting surface.5Pavement like new4Many old ages of process life3Near to or necessitating Rehabilitation2Should hold been rehabilitated in the last twosome of old ages1Should hold been rehabilitated many old ages0 agoFigure 4.3 Quality of siting surfaceBased on the above process siting quality is evaluated and is found out to be 3.71 for the full stretch.Presence of intersection installations.For the stretch of 26kms thither are about 39 signalized intersections.Handiness of foot way installationsRoad stock list surveies are conducted to mensurate the handiness of footpath length and this has installation has been described briefly under Walkability index in chapter 4Parking installationsParking length on the on-street has been carried out to find the on-street parking index. This installation has been described briefly under On-street parking index in chapter 4.4.2. Secondary Data CollectionThe sub stitute(prenominal) informations required for the survey is collected from the assorted beginnings and informations collected from assorted authorities sections are as followsBangalore city Traffic Police.Accident statistics informations is obtained from Bangalore City Traffic Police.Regional Transport Office, Bangalore. ( RTO )Datas about Vehicles readjustment and the growing of vehicles for the decennaries is obtained from RTO, Bangalore.Bangalore Metropolitan Transport tummy ( BMTC )Datas abut coach fleet size, figure of agendas, figure of riders carried per twenty-four hours is obtained from BMTC, Bangalore.