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Chapter – 4


In the section 3, we now have discussed about the aim and methodological analysis adopted for the work. In this chapter, targeted traffic studies that are to be conducted and the require of the studies for explicating the indices of the mobility are quickly explained. The chapter can be organized in two parts which involves, Preliminary studies are executed for the informations collectiong and the 2nd portion consists of secondary annonces aggregation, which can be obtained from different beginnings.

4. 1 . Traffic Surveies

The undermentioned preliminary research were carried out for expanding index.

  1. Traffic amount count study
  2. Speed and hold surveies
  3. Road inventory list study
  4. Opinion research

5. 1 . 1 . Traffic volume level count examine

Traffic volume count research are conducted to acquire the accurate values and advice about the sum of vehicles move throughing through the study nation.

Need of traffic volume count study:

Traffic quantity count research are used to: [ six ]

  1. Traffic tendencies could be established by mensurating the visitors volume.
  2. To obtain the one-year travel clip in vehicle kilometres for the bing program and based upon it economical justification can be provided for new proposals.
  3. Highway user costs, grosss may be estimated.

In the present study, classified volume count studies were executed at the beginning and the finish in the identified extend

Need for Categorized volume depend study: [ six ]

  1. Pieces of Geometric design of main roads such as width of lanes, design of slope inclines, clearances pertaining to overhead buildings, classs and so forth are determined by the categorization of the automobiles and its volume on the route.
  2. Pavement deign, type of Bridgess and design of other substructure installations on the route needs informations regarding classified volume count.
  3. Quantity to the capacity, normally known as V/C ratio can be determined simply on the ground of classified volume depend.
  4. Classified quantity count in peak hours throws obvious radiation within the lacks in the systems
  5. To offer justification to get the regulative steps just like, one-way roads, routing of traffic, parking installations.

Traffic amount informations is really much of importance in visitors, deign, organizing, operation and research intents. Traffic volume Count Review is carried out at identified midblock for 8 hours of the 24 hours masking both forenoon and nightfall extremum and off-peak several hours.

Behavior in the study:

Manual traffic counts were conducted at the recognized midblock of beginning ( Sunkadakatte ) and finish ( K. Ur. Puram ) of the stretch selected pertaining to 8 several hours of the 24 hours. At each midblock, both directional classified traffic volume level count study were done for the computation of public display indexs.

Examination of the explications:

The targeted traffic volume rely informations gathered from the discipline is scrutinized and the ideals are reviewed, where the details is reviewed. The entire volume is converted to Passenger car units ( PCU ) as per IRC: 106-1990 to get the volume of the road to its capacity given in the codification.

Vehicle Type

Equivalent PCU factors- Percentage composing of vehicles type in traffic watercourse

Fast Cars

5 %

10 % and above

1 . Two Wheeler motor beat / scooter

0. a few

0. seventy five

2 . Traveling auto, decision – up new influx

1 . zero

1 . 0

3. Auto-rickshaw

1 . a couple of

2 . zero

4. Lumination commercial vehicle

1 . 4

2 . zero

5. Truck or Coach

2 . 2

3. six

6. Farming Tractor Trailers

4. 0

5. 0

Slow vehicles

7. Pattern

0. 5

0. 5

8. Cycle jinrikisha

1 . 5

installment payments on your 0

on the lookout for. Tonga ( Horse drawn vehicles )

1 . your five

2 . zero

10. Side cart

installment payments on your 0

several. 0

Table 4. one particular: PCU factors for different types of vehicles [ 7 ]

( Start: Table one particular: Recommended PCU factors for assorted types of cars on city roads. IRC: 106-1990 [ 7 ] )

Final product of the survey:

The received PCU/HR for both Maximum and off–Peak hours are analyzed and the

Volume/Capacity is definitely calculated intended for the finding of the community presentation index.

4. 1 . 2 . Velocity and maintain surveies

Travel velocity is usually reciprocally in accordance with go clip. The travel and leisure clip survey provides infos for the sum of clip required to track a particular subdivision of route net. These types of informations provide information about velocity, hold informations. Travelling clip and hold features are good d�nombrements of the level of service that may be provided and is used to mensurate the productivity of the traffic flow. The velocity and hold surveies yields the informations regarding mean quest clip, mean journey speed, norm halted hold, suggest running show, entire ceased hold and mean running velocity over the stretch examined.

Need of Speed and hold surveies:

  1. Velocity and keep surveies may supply information concerning the amount, location, characteristics of keep and cause of the carry. Congestion could be evaluated and is rectified by simply traffic and other ordinances.
  2. Congestion index, Travel and leisure clip index are all dependant on the travel clip, which is obtained by velocity and hold surveies.

Patterns of the research:

Out of the numerous available techniques for transporting away velocity and hold surveies, drifting vehicle method / Test-Car strategy method is intended for the current executing. Two trial tallies happen to be conducted to look for velocity and hold pertaining to both optimum and off-peak hr in the twenty-four hours.

Analysis from the informations:

The quantity count infos collected through the field is scrutinized as well as the information is definitely analyzed. The mean quest clip( in proceedingss ) for all the cars in the watercourse along the way of flow Q is given by simply equation four. 1 and 4. a couple of [ 5 ]

= Ttungsten– ( nY/q ) …………………………………4. 1

Queen = ( na+nY) / ( Big ta& Ttungsten) ……………………. ….. …4. 2


Q = flow of vehicles along one way of the watercourse.

Na= mean number of automobiles counted in the form of the watercourse when the trial vehicle journeys in the opposing way.

DCon= mean physique of automobiles catching the trial motor vehicle minus the figure of cars overtaken if the trial car is in the means of Q.

Toa= mean trip clip, in minute when the trial motor vehicle is jogging against the watercourse Q.

Ttungsten= mean journey clip, in minute if the trial vehicle is jogging with the watercourse Q.

( Mention: Highway Engineering, T. K. Khanna and C. E. G. Justo ) [ 5 ]

Final product of the study

Delaies over the stretch happen to be obtained as well as the type and ground for the holds are besides obtained.

four. 1 . a few. Road Products on hand Survey

Road stock list study can be conducted to update the database with the bing way web.

Behavior of the research:

For the selected stretch, visual stock list was done and the undermentioned stock lists of the installation have been done.

  1. Identified subdivision length.
  2. Effective course breadth.
  3. Presence of typical.
  4. Quality of siting surface
  5. Presence of intersection installs.
  6. Handiness of foot approach installations.
  7. Parking installations.
  1. Discovered subdivision duration

Two test tallies were conducted from Sunkadakatte to E. R. Puram and backside, to find the effectual subdivision duration between the beginning and finish in fact it is has been found out to be 26kms.

  1. Successful route width.

Highway breadth readily available for the vehicular motion is usually calculated for each 250m utilizing tape and is represented because below in the graph. It can be classified as route width holding breadth , A, gt, several. 5m, breadth , A, lt, several. 5m, Size , A, gt, 15. 5m. Graph indicates that 41 % of the course in the identified stretch features effectual course breadth , A, gt, 7. 5m, 25 % has less than 7. 5m, and 34 % has more than 10. 5m.

Figure some. 1: Street width Classification

  1. Occurrence of median.

Most the route which comes underneath identified neighborhood has typical, approximately 86 % from the stretch provides average in fact it is absent or removed for approximately 14 % of the subdivision, due to the building of subway and other infrastructural activity.

Determine 4. a couple of: Median Handiness

  1. Top quality of siting surface

Quality of siting surface is examined by Sidewalk rating [ 8 ] by visual observations. Pursuing process can be followed to measure the top quality of siting surface.


Tarmac like new


Many old ages of service life

a few

Close to or necessitating Rehabilitation


Should carry been rehabilitated in the last smaller outfit of older ages


Should keep been rehabilitated many old age ranges

0 in the past

Number 4. a few: Quality of siting surface

Based on these process siting quality can be evaluated and is also found out being 3. 71 for the total stretch.

  1. Presence of intersection installs.

Intended for the expand of 26kms there are regarding 39 signalized intersections.

  1. Handiness of foot method installations

Road share list surveies are conducted to mensurate the advantage of footpath length which has assembly has been defined briefly underneath Walkability index in part 4

  1. Parking installs

Parking length within the on-street has become carried out to find the On-street car parking index. This kind of installation has been described in brief under On-street parking index in part 4.

4. 2 . Supplementary Data Collection

The supplementary informations necessary for the survey is gathered from the different beginnings and informations accumulated from various authorities areas are the following:

  1. Bangalore City Targeted traffic Police.

Accident statistics informations is obtained from Bangalore City Traffic Police.

  1. Regional Transfer Office, Bangalore. ( RTO )

Datas regarding Vehicles registration and the growing of vehicles for the decennaries can be obtained from RTO, Bangalore.

  1. Bangalore City Transport Corporation ( BMTC )

Datas abut coach navy size, number of agendas, figure of riders transported per 24 hours is obtained from BMTC, Bangalore.

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Published: 04.22.20

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