Untitled - Malaysian Institute of Planners

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Syazwani Sahrir, Syahriah Bachok & Mariana Mohd. OsmanThe Effectiveness of Provision of New Static Information Signage: A Case Study of IIUM, Gombakaccuracy from simulated traffic signs. Luminance on the sign legend wasadministered at fives levels; 3.2 cd/m2, 10 cd/m2, 20 cd/m2, 40 cd/m2 and 80cd/m2, on positive-contrast textual traffic sign stimuli with contrast ratios of 6:1and 10:1. The simulated signs were positioned at 33 foot/inch and 40 foot/inchlegibility indices viewed under conditions simulating a night time drivingenvironment. The findings suggested that increasing the sign luminancesignificantly reduced the time to acquire information. Similarly, increasing thesign size also reduced the information acquisition time (Schnell, 2010).Furthermore, as the text size decreased, the reading times showed a much moredramatic increase at lower luminance levels (Schnell, 2010). These findingssuggest that larger and brighter signs are more efficient in transferring theirmessage to the driver by reducing information acquisition time, or alternatively,by increasing the transfer accuracy. In return, reduced sign viewing durationsand increased reading accuracy is likely to improve roadway safety.METHODOLOGYThe primary data obtain were research derived from site observations andquestionnaire surveys. The site observations were to identify the existingphysical conditions of the informatory traffic signs in IIUM Gombak campus.Personal interviews can generate a very high response rate. The questionnairesurvey was to gather the information of the respondents’ perception andapproach towards the effectiveness of the informatory traffic signs in IIUM. Therespondents were selected from Zone I: Ahmad Ibrahim Kulliyyah of Law(AIKOL) and Zone 2: Kulliyyah of Architecture and Environmental Design(KAED) areas in IIUM.This research tends to focus of respondents form different faculties inorder to identify the differences of perceptions of the students as they were formdifferent background of study and characteristics. The selection was based onAIKOL students being knowledgeable and familiar with laws and regulations asthey were studying in law. Meanwhile, the selections of KAED students werebecause they were knowledgeable and familiar with urban design setting andtraffic and transportation matters as they were studying built environment anddesign. However, the analysis and findings may not be applicable to otheruniversities due to IIUM signages being different from other universities. Thepopulation was divided into homogenous groups (based on faculties). Due to thelarge number of population, the purposive sampling has been used.© 2012 by MIP 90
PLANNING MALAYSIAJournal of the Malaysia Institute of Planners (2012)The questionnaire survey was divided into four sections. The firstsection was the revealed preference where the respondent provided theirperception on the effectiveness of the traffic sign. These variables were thedependent variables. Meanwhile, the second section was on the tripcharacteristics. The third section dealt with the driving characteristics of therespondents. Trip and driving characteristics were independent variables. Thelast section was on the basic questions pertaining the respondent’s backgrounds.Variables such as gender, age and faculties have been asked. These variableswere the independent variables. Likert Scale was used for the relevantperception questions.DATA ANALYSIS AND FINDINGSEffectiveness of New Static Information Signage in IIUMThe questionnaire has been distributed to 130 respondents. 128 have beenanalysed after the data cleaning. The Relative Importance Index (RII) methodwas adopted by many researchers (Kometa, et al., 1994). This method wasadopted to analyse the data collected from the questionnaire survey. Therespondent’s perception towards the traffic sign has been scaled by; 1=veryunsatisfied, 2=unsatisfied, 3=satisfied and 4= very satisfied. The four-pointscale 0–3 mentioned earlier was transformed into relative importance indices foreach satisfaction of related question on font size, board size, illumination,colour of sign, language and siting of sign. The indices were then used todetermine the rank of each item. These rankings made it possible to crosscompare the relative importance of user’s satisfaction and the measure of trafficsign effectiveness. The RII was used to determine the variables most effectivefor informatory traffic sign in IIUM.Table 1: Relative Importance Index (R.I.I)Measure ofEffectivenessVery Satisfied(Score of 3)Satisfied(Score of 2)Unsatisfied(Score of 1) R.I.I RankLanguage of sign 52 156 74 148 2 2 0.79 1Board Size 30 90 86 172 12 12 0.71 2Font Size 26 78 75 150 27 27 0.66 3Colour of sign 28 84 58 116 42 42 0.63 4Siting of sign 18 54 78 156 32 32 0.63 5Luminance 24 72 52 104 52 52 0.59 6Based on the findings, language of sign most effective, with a R.I.Iscores 0.79 highlight in the Table 1. IIUM was known as internationaluniversity, which was why English language was used as the main language.91© 2012 by MIP
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