International Journal of Civil Engineering and Technology (IJCIET) Volume 10, Issue 1, January 2019, pp.233–241, Article ID: IJCIET_10_01_023 Available online at http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=10&IType=1 ISSN Print: 0976-6308 and ISSN Online: 0976-6316 ©IAEME Publication Scopus Indexed EVALUATION OF URBAN ACCESSIBILITY THROUGH TRAVEL BEHAVIOR FOR MIXED LAND USE ZONES Jayesh Juremalani Research Scholar, Civil Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India Krupesh A. Chauhan Associate Professor, Civil Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat, India. 395007 ABSTRACT In general, urban accessibility shows the ease of reaching destinations and the interaction between the land-use and transportation systems. Integrating transport and land-use mix is one of the goals of planning policies around the world. In this paper, an attempt is made to assess the urban accessibility through commuters’ travel behavior for shopping trip only. The effects of trip characteristics like trip length, trip time and trip cost and socio-economic characteristics like gender, age, income, occupation and vehicle ownership on travel behavior and mode choice are studied for shopping trips for different mixed land use zones (wards) of Vadodara city. Urban accessibility Index is prepared for different neighborhoods. It is found that the change in the land-use mix affects the commuters' travel behaviour and mode choice selection. Keywords: Trip Distance, Trip Cost, Trip Time, Utility Function, Accessibility. Cite this Article: Jayesh Juremalani and Krupesh A. Chauhan, Evaluation of Urban Accessibility Through Travel Behavior For Mixed Land Use Zones, International Journal of Civil Engineering and Technology (IJCIET), 10 (1), 2019, pp. 233–241. http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=10&IType=1 1. INTRODUCTION Accelerated industrialization throughout the world has led to higher growth rates, increased income and high demand for mobility. The increasing number of vehicles in the city causes congestion and environmental problems that lead to disrupted traffic conditions like delay, accidents which cause huge economic loss every year. Urban accessibility is a term often used in transport and land-use planning, and is generally understood to mean approximately 'ease of reaching'. However, the detailed definitions may vary. The related terms 'accessibility' and 'mobility' are the subjects of considerable confusion, and it is useful here to describe their http://www.iaeme.com/IJMET/index.asp 233 editor@iaeme.com Jayesh Juremalani and Krupesh A. Chauhan distinct meanings. Traditionally, measures used to evaluate the transportation system have focused on the concept of mobility. Mobility measures assess the potential for movement. They typically include elements that describe the level of service, road capacity, and design speed. On the other hand, accessibility measures assess the potential for interaction. Elements of an accessibility measure would describe the spatial distribution of destinations, the ease of reaching those destinations, and the quality of the destinations. Mobility is one element of accessibility. A typical accessibility measure has two components. One is related to the destinations and is commonly called the attractions portion of the measure. Typical attractions measures for shopping include a number of employees, amount of sales, or square feet of space. The second component describes the ease of reaching those attractions. Since difficulty increases over the distance this component is commonly called the impedance factor. Typical impedance factors include the distance to the attraction, the amount of time it takes to reach the attraction or the cost of travelling to the attraction. Utility-based accessibility measures, first introduced by Ben-Akiva and Lerman: This model is defined based on the “log sum” expression of a random utility model in which the probability of an individual making a particular choice is related to the utility of all choices. In this paper, accessibility is found using this model under heterogeneous traffic conditions and mix neighborhoods. 2. INTRODUCTION OF THE STUDY AREA Vadodara also is known as Baroda is the third largest city in the western Indian state of Gujarat after Ahmedabad and Surat. It is located on the banks of the Vishwamitri River. It is selected to be converted into the smart city under smart cities mission. BRTS is proposed for it. The railway line and NH 8 that connects Delhi and Mumbai pass through Vadodara. As per census 2011, the population of Vadodara is 16,70,806: of which male and female are 8,69,647 and 8,01,159 respectively. Figure 1 shows the zoning of the Vadodara city. Figure 1. Zoning map of Vadodara city. http://www.iaeme.com/IJCIET/index.asp 234 editor@iaeme.com Evaluation of Urban Accessibility Through Travel Behavior For Mixed Land Use Zones 3. SOCIO-ECONOMIC BACKGROUND OF THE COMMUTERS The Vadodara city has 19 election wards as per census, so 19 wards were considered as 19 zones of the study area. A questionnaire was prepared and using Krejcie & Morgan formula sample size is decided. Simple random sampling technique is used for data collection. Total 1400 samples were collected. After removing outliers total 1358 respondents’ forms were selected for analysis from all the 19 wards. The questionnaire was prepared to collect information about all the trips but in this paper, only shopping trip analysis is shown. There were total 983 male and 375 female respondents. The information on various social and economic variables like age, income, gender, occupation, vehicle ownership was collected and analyzed. Table 1 below shows the age distribution of respondents ward-wise. For example, ward number 7 and 14 have younger respondent having age below 35 years as high as 77.67 and 72.97 percentage respectively and ward number 8 and 15 have a lower percentage of younger respondent whose age is below 35 years 39.32 and 40.62 percent respectively. Table 1 Statistical analysis of age of respondents. Ward No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 16 to 25 years 25 34 11 12 4 4 49 10 6 2 2 30 12 16 6 10 12 13 12 270 26 to 35 years 24 30 36 36 26 22 31 25 18 16 15 29 21 38 20 34 19 36 17 493 36 to 45 years 13 13 17 19 23 14 16 15 11 14 15 22 22 12 15 23 22 15 12 313 http://www.iaeme.com/IJCIET/index.asp 235 46 to 55 years 8 14 9 10 10 10 4 32 5 4 4 14 10 7 8 14 11 9 9 192 55 years above 4 10 12 6 1 0 3 7 3 4 2 5 5 1 15 3 3 4 2 90 Total Respondents 74 101 85 83 64 50 103 89 43 40 38 100 70 74 64 84 67 77 52 1358 editor@iaeme.com Jayesh Juremalani and Krupesh A. Chauhan Table 2 shows the occupation of the respondents. The average percentage of the government employee, private sector employee, service industry employee, businessmen and housewife are 8.7%, 20.91%, 17.54%, 26.32% and 26.53% respectively. So it is clear from the analysis that more number of shopping trips are made by business class people and housewife. Table 2 Statistical analysis of occupation of respondents. WARD GOV. EMPLOYEE PRIVET SECTOR SERVICE INDUSTRY BUSINESSMAN HOUSEWIFE TOTAL 1 8 27 20 14 5 74 2 16 28 27 20 10 101 3 10 30 12 16 17 85 4 7 23 18 21 14 83 5 6 5 5 15 33 64 6 5 6 9 2 28 50 7 6 24 24 41 8 103 8 11 18 16 20 24 89 9 1 11 5 20 6 43 10 1 1 3 11 24 40 11 0 1 4 13 20 38 12 16 32 25 23 4 100 13 17 19 13 12 9 70 14 2 17 12 34 9 74 15 9 15 10 14 16 64 16 10 14 14 17 29 84 17 0 4 0 29 34 67 18 4 19 26 22 6 77 19 1 12 11 10 18 52 The segregation of respondents based on income is shown in Table 3 below. The maximum respondents fall under the income group of 20,000 to 30,000 and 30,000 to 40,000. Total 53.21 % respondents have their income between Rs. 20,000 to Rs. 40,000. Only 6% respondents have income between Rs. 50,000 to Rs. 1,00,000 and merely 2% are having monthly income more than 1 lakh. http://www.iaeme.com/IJCIET/index.asp 236 editor@iaeme.com Evaluation of Urban Accessibility Through Travel Behavior For Mixed Land Use Zones Table 3. Statistical analysis of income of respondents. 1 2 3 4 LESS THAN 5000 1 1 1 1 5 6 7 8 9 10 0 0 5 1 5 1 16 2 1 2 9 5 10 16 12 3 11 12 13 14 15 16 0 0 3 4 1 1 1 3 5 6 7 2 2 15 11 13 12 13 3 18 14 36 22 22 10 29 17 15 17 26 16 19 11 0 5 15 3 13 5 0 0 4 3 3 4 0 0 1 38 100 70 74 64 84 17 18 19 1 4 3 33 1 5 3 78 6 7 11 207 10 23 8 365 22 25 17 369 24 8 7 199 3 4 3 78 0 1 0 29 67 77 52 1358 WARD 500010000 1000120000 2000130000 3000140000 4000150000 50001100000 ABOVE 100000 TOTAL 7 3 2 9 19 21 7 15 19 16 26 22 15 21 31 25 8 17 14 8 5 10 4 2 0 12 0 1 74 101 85 83 3 17 12 58 29 6 4 15 9 14 25 14 22 17 10 0 10 5 5 2 13 0 4 0 3 1 1 0 2 0 0 64 50 103 89 43 40 Urban accessibility is measured here in terms of the log value of utility functions. Here utility value is nothing but the advantages one gets from the particular area. The equations for the utility function are generated using SPSS software from the collected data of three parameters travel distance, travel time and travel cost. The mean values are shown above in Table number 4. It also shows the area in square Km and density which is nothing but population per square KM. http://www.iaeme.com/IJCIET/index.asp 237 editor@iaeme.com Jayesh Juremalani and Krupesh A. Chauhan Table 4 below shows the mean values of the three parameters trip distance, trip time and trip cost for shopping trips. Ward Distance Time Cost 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2.78 16.65 31.97 2.54 16.27 44.35 1.38 17.12 36.31 5.36 23.67 21.57 2.22 16.63 18.08 1.10 12.32 3.78 3.34 14.07 14.05 1.38 14.55 11.35 1.35 13.91 40.23 1.25 16.55 49.35 .92 15.68 41.21 4.50 18.82 27.96 3.79 19.99 21.69 .88 14.72 4.78 6.72 21.92 57.77 1.60 12.24 8.82 1.70 12.13 9.24 5.06 16.90 42.91 2.38 13.04 14.58 Area in SQ KM 9.49 9.17 5.98 11.50 5.34 5.18 16.14 6.60 7.08 6.84 3.27 7.38 6.78 4.43 10.15 5.34 8.09 20.58 9.30 Population above 18 as per census 2011 64860 73258 68124 57669 68216 67050 69640 70092 66099 73779 69004 57493 63618 75990 62888 62101 69908 62556 67553 4. ANALYSIS OF URBAN ACCESSIBILITY The mean values are then normalized. Analysis of ward number 1 is shown in table 5. For example utility for ward 1 can be found, U ward 1 = 4.440-0.450* 0.41 -0.035*0.70- 0.005* 0.55= 4.280. Here normalized mean values of distance, time and cost are used to find out utility value. Similarly, all the utility values are found for all the wards. After finding utility values they are converted into log values and the accessibility index is prepared for the wards for shopping trips. http://www.iaeme.com/IJCIET/index.asp 238 editor@iaeme.com Evaluation of Urban Accessibility Through Travel Behavior For Mixed Land Use Zones Table 5. Calculation of log of utility functions for ward 1 ward Coefficient U Value Log U Normalized mean Values for ward 1 Distance Time Cost 0.41 0.70 0.55 4.440 -.450 1 4.28 .035 1.45 .005 Table 6 shows the final score of accessibility for all zones of Vadodara. The highest value is secured by ward 6 and the lowest value is achieved by ward 19. So accessibility of Warsia Sangam area is highest while Maneja has the lowest accessibility as far as shopping trips are concerned. Table 6 Final score of accessibility for all zones of Vadodara. Ward/ Zone 6 17 16 14 4 8 1 11 5 7 9 13 15 10 18 2 12 3 19 Score 0.87 0.80 0.74 0.62 0.56 0.46 0.45 0.45 0.42 0.41 0.38 0.38 0.37 0.29 0.20 0.20 0.11 0.07 0.30 Name WARSIA SANGAM AREA TARSALI PRATAPNAGAR MANDVI CBD AREA SARDAR ESTATE GORWA CHHANI AREA AKOTA AREA WAGHODIA AJWA AREA FATEHGUNJ AREA GOTRI TALAV KOTHI RAOPURA MANJALPUR VASNA TANDALJA MAKARPURA AREA NIZAMPURA ATLADRA AREA HARNI AIRPORT MANEJA AREA Chart 1 shows the mode share and shopping trip distance relationship. It can be seen from chart 1 that after 2 km use of non-motorized transport like walking and bicycle reduces drastically. This is useful for designing cities. http://www.iaeme.com/IJCIET/index.asp 239 editor@iaeme.com Jayesh Juremalani and Krupesh A. Chauhan Chart 1 The relationship between mode choice and working trip distance. 5 CONCLUSIONS From the analysis, it may be concluded that the ward numbers 6, 17, 16 and 14 are more accessible for shopping trips than their other counterparts. 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