## GUJARAT TECHNOLOGICAL UNIVERSITY DIPLOMA IN ENGINEERING - SEMESTER 4 - EXAMINATION - SUMMER 2026

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%ક1ચ સાથે શેરGLYPH&lt;c=24,font=/QOBAAA+ShrutiRegular&gt;મા ં પાGLYPH&lt;c=13,font=/QOBAAA+ShrutiRegular&gt;કLગ  સ મ &amp; વો.

૦૪

| Subject Code: DI04006081                                                                                                         | Subject Code: DI04006081                                                                                                         | Subject Code: DI04006081                                                                                                                                                                                                                                                                                                                                 | Date: 30/05/2026   |
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| Subject Name:  Traffic Engineering                                                                                               | Subject Name:  Traffic Engineering                                                                                               | Subject Name:  Traffic Engineering                                                                                                                                                                                                                                                                                                                       |                    |
| Time: 10:30 AM TO 01:00 PM                                                                                                       | Time: 10:30 AM TO 01:00 PM                                                                                                       | Time: 10:30 AM TO 01:00 PM                                                                                                                                                                                                                                                                                                                               | Total Marks: 70    |
| Instructions :                                                                                                                   | Instructions :                                                                                                                   | Instructions :                                                                                                                                                                                                                                                                                                                                           |                    |
| 1. Attempt all questions. 2. MakeSuitable assumptions wherever necessary 3. Figures to the right indicate full marks. permitted. | 1. Attempt all questions. 2. MakeSuitable assumptions wherever necessary 3. Figures to the right indicate full marks. permitted. | 1. Attempt all questions. 2. MakeSuitable assumptions wherever necessary 3. Figures to the right indicate full marks. permitted.                                                                                                                                                                                                                         |                    |
| 4. Use of simple calculators and non-programmable scientific calculators are                                                     | 4. Use of simple calculators and non-programmable scientific calculators are                                                     | 4. Use of simple calculators and non-programmable scientific calculators are                                                                                                                                                                                                                                                                             |                    |
| 5. English version is authentic.                                                                                                 | 5. English version is authentic.                                                                                                 | 5. English version is authentic.                                                                                                                                                                                                                                                                                                                         |                    |
| Q.1                                                                                                                              | (a)                                                                                                                              | Write a short note on adaptive traffic signals.                                                                                                                                                                                                                                                                                                          | 03                 |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૧                                            | ( અ )                                                                                                                            | અGLYPH<c=2,font=/QOBAAA+ShrutiRegular> GLYPH<c=4,font=/QOBAAA+ShrutiRegular> ૂ લનશીલ GLYPH<c=11,font=/QOBAAA+ShrutiRegular>ાGLYPH<c=13,font=/QOBAAA+ShrutiRegular> ફક  િસ GLYPH<c=18,font=/QOBAAA+ShrutiRegular>ન લ ો  પ ર  GLYPH<c=22,font=/QOBAAA+ShrutiRegular> ૂ ંકGLYPH<c=24,font=/QOBAAA+ShrutiRegular>  નGLYPH<c=25,font=/QOBAAA+ShrutiRegular>ધ   લ ખ ો. | ૦૩                 |
|                                                                                                                                  | (b)                                                                                                                              | Explain Highway Traffic Management System.                                                                                                                                                                                                                                                                                                               | 04                 |
|                                                                                                                                  | ( બ )                                                                                                                            | હાઇવે GLYPH<c=11,font=/QOBAAA+ShrutiRegular>ા GLYPH<c=13,font=/QOBAAA+ShrutiRegular> ફક  મ ેન ેજ મ ે#ટ  િસ %ટમ  સ મ & વો.                                                                                                                                                                                                                                        | ૦૪                 |
|                                                                                                                                  | (c)                                                                                                                              | Explain PIEV theory for reaction time with sketch.                                                                                                                                                                                                                                                                                                       | 07                 |
|                                                                                                                                  | ( ક )                                                                                                                            | GLYPH<c=13,font=/QOBAAA+ShrutiRegular>રએકશન ટાઈમ )ગેની PIEV થીયરGLYPH<c=24,font=/QOBAAA+ShrutiRegular> %ક1ચ સાથે સમ&વો.                                                                                                                                                                                                                                         | ૦૭                 |
|                                                                                                                                  |                                                                                                                                  | અથવા                                                                                                                                                                                                                                                                                                                                                      |                    |
|                                                                                                                                  | (c)                                                                                                                              | Explain physical factors of road users.                                                                                                                                                                                                                                                                                                                  | 07                 |
|                                                                                                                                  | ( ક )                                                                                                                            | ર%તાના વપરાશકતા4ઓના શારGLYPH<c=24,font=/QOBAAA+ShrutiRegular>GLYPH<c=13,font=/QOBAAA+ShrutiRegular>રક પGLYPH<c=13,font=/QOBAAA+ShrutiRegular>રબ ળ ો સમ& વો.                                                                                                                                                                                                      | ૦૭                 |
| Q.2                                                                                                                              | (a)                                                                                                                              | Define :-1) Spot speed 2) Running speed 3) Travel speed                                                                                                                                                                                                                                                                                                  | 03                 |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૨                                            | ( અ )                                                                                                                            | 8યા9યાિયત કરો :-1) %પોટ %પીડ 2) દોડવાની %પીડ 3) BુસાફરGLYPH<c=24,font=/QOBAAA+ShrutiRegular>ની %પીડ                                                                                                                                                                                                                                                                    | ૦૩                 |
|                                                                                                                                  | (b)                                                                                                                              | Explain spot speed study by enoscope.                                                                                                                                                                                                                                                                                                                    | 04                 |
|                                                                                                                                  | ( બ )                                                                                                                            | એનો%કોપ Cારા %પોટ %પીડ સમ&વો.                                                                                                                                                                                                                                                                                                                                   | ૦૪                 |
|                                                                                                                                  | (c)                                                                                                                              | List out the various methods of conducting an Origin and Destination (O&D) study, and describe the procedure for any one of them.                                                                                                                                                                                                                        | 07                 |
|                                                                                                                                  | ( ક )                                                                                                                            | O&D અGયાસ માટ1ની િવિવધ પHિતઓની યાદGLYPH<c=24,font=/QOBAAA+ShrutiRegular> બનાવો અને તેમાંથી કોઈપણ એક પHિત માટ1ની JGLYPH<c=13,font=/QOBAAA+ShrutiRegular>KયાGLYPH<c=2,font=/QOBAAA+ShrutiRegular>ું વણ4ન કરો.                                                                                                                                                                     | ૦૭                 |
| અથવા OR                                                                                                                           | અથવા OR                                                                                                                           | અથવા OR                                                                                                                                                                                                                                                                                                                                                   |                    |
| Q.2                                                                                                                              | (a)                                                                                                                              | Define :-1) Parking accumulation 2) Parking duration 3) Parking volume                                                                                                                                                                                                                                                                                   | 03                 |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૨                                            | ( અ )                                                                                                                            | 8યા9યાિયત કરો :-1) પાGLYPH<c=13,font=/QOBAAA+ShrutiRegular>કLગ સ ં ચય 2) પાGLYPH<c=13,font=/QOBAAA+ShrutiRegular>કLગ સમયગાળો 3) પાGLYPH<c=13,font=/QOBAAA+ShrutiRegular>કLગ વોMN ુમ                                                                                                                                                                                  | ૦૩                 |
|                                                                                                                                  | (b)                                                                                                                              | Explain on street parking with neat sketch.                                                                                                                                                                                                                                                                                                              | 04                 |
|                                                                                                                                  | ( )                                                                                                                              |                                                                                                                                                                                                                                                                                                                                                          |                    |

|                                                                                       | (c)   | List out the various methods used for conducting traffic volume studies, and describe the field procedure for any one of them.                                                                                                                                              | 07   |
|---------------------------------------------------------------------------------------|-------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------|
|                                                                                       | ( ક ) | GLYPH<c=11,font=/QOBAAA+ShrutiRegular> ાGLYPH<c=13,font=/QOBAAA+ShrutiRegular>ફક વોMNુમ અGયાસ કરવા માટ1 ઉપયોગમાં લેવાતી િવિવધ પHિતઓની યાદGLYPH<c=24,font=/QOBAAA+ShrutiRegular> બનાવો, અને તેમાંથી કોઈપણ એક પHિતGLYPH<c=2,font=/QOBAAA+ShrutiRegular> ું  વણ4ન કરો.                                      | ૦૭   |
| Q.3                                                                                   | (a)   | State important functions of road markings.                                                                                                                                                                                                                                 | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૩ | ( અ ) | રોડ માGLYPH<c=13,font=/QOBAAA+ShrutiRegular> કLગ ન ા મ હQવR ૂણ4 કાયS જણાવો.                                                                                                                                                                                                        | ૦૩   |
|                                                                                       | (b)   | Give advantages and disadvantages of traffic signals.                                                                                                                                                                                                                       | 04   |
|                                                                                       | ( બ ) | GLYPH<c=11,font=/QOBAAA+ShrutiRegular> ાGLYPH<c=13,font=/QOBAAA+ShrutiRegular>ફક િસGLYPH<c=18,font=/QOBAAA+ShrutiRegular>ન લ ન ા ફાયદ ા અને ગેરફાયદા જણાવો.                                                                                                                            | ૦૪   |
|                                                                                       | (c)   | Classify the various types of traffic signs. Describe each type and provide three illustrative figures for each.                                                                                                                                                            | 07   |
|                                                                                       | ( ક ) | િવિવધ Jકારના GLYPH<c=11,font=/QOBAAA+ShrutiRegular>ાGLYPH<c=13,font=/QOBAAA+ShrutiRegular> ફક  Tચ UોGLYPH<c=2,font=/QOBAAA+ShrutiRegular> ું  વગVકરણ કરો. દર1ક JકારGLYPH<c=2,font=/QOBAAA+ShrutiRegular> ું  વણ4ન કરો અને દર1ક માટ1 Wણ XૃZટાંત[પ આGLYPH<c=4,font=/QOBAAA+ShrutiRegular>ૃિતઓ આપો. | ૦૭   |
|                                                                                       |       | અથવા                                                                                                                                                                                                                                                                         |      |
|                                                                                       |       | OR                                                                                                                                                                                                                                                                          |      |
| Q.3                                                                                   | (a)   | State important functions of traffic signs.                                                                                                                                                                                                                                 | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૩ | ( અ ) | GLYPH<c=11,font=/QOBAAA+ShrutiRegular> ાGLYPH<c=13,font=/QOBAAA+ShrutiRegular>ફક TચUોના મહQવR ૂણ4 કાયS જણાવો.                                                                                                                                                                      | ૦૩   |
|                                                                                       | (b)   | Differentiate between: Fixed time signal and vehicle actuated signal.                                                                                                                                                                                                       | 04   |
|                                                                                       | ( બ ) | GLYPH<c=13,font=/QOBAAA+ShrutiRegular>ફ]%ડ ટાઇમ િસGLYPH<c=18,font=/QOBAAA+ShrutiRegular>નલ અને 8હGLYPH<c=24,font=/QOBAAA+ShrutiRegular>કલ એ]ટ^ ુ એટ1ડ િસGLYPH<c=18,font=/QOBAAA+ShrutiRegular>નલ વ_ચે તફાવત સમ& વો.                                                                 | ૦૪   |
|                                                                                       | (c)   | Explain centreline marking and stopline marking with sketch.                                                                                                                                                                                                                | 07   |
|                                                                                       | ( ક ) | %ક1ચ સાથે સે#ટરલાઇન માGLYPH<c=13,font=/QOBAAA+ShrutiRegular>કLગ અને %ટોપલાઇન માGLYPH<c=13,font=/QOBAAA+ShrutiRegular>કLગ સમ& વો.                                                                                                                                                      | ૦૭   |
| Q.4                                                                                   | (a)   | Give guidelines for selecting a rotary intersection.                                                                                                                                                                                                                        | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૪ | ( અ ) | રોટરGLYPH<c=24,font=/QOBAAA+ShrutiRegular>   ઇ #ટરસ ે]શ ન પસ ં દ  કરવા માટ1 માગ4દિશ`કા આપો.                                                                                                                                                                                          | ૦૩   |
|                                                                                       | (b)   | Give the use of following. 1) Rumble strip 2) Guard Rails                                                                                                                                                                                                                   | 04   |
|                                                                                       | ( બ ) | નીચેનાનો ઉપયોગ સમ&વો. 1) રaબલ %GLYPH<c=11,font=/QOBAAA+ShrutiRegular>GLYPH<c=24,font=/QOBAAA+ShrutiRegular>પ 2) ગાડ4 ર1Mસ                                                                                                                                                          | ૦૪   |
|                                                                                       | (c)   | Provide neat sketches of speed breakers and litterbins, and describe their respective functions.                                                                                                                                                                            | 07   |
|                                                                                       | ( ક ) | %પીડ bેકર અને કચરાપેટGLYPH<c=24,font=/QOBAAA+ShrutiRegular>ના c ુ ઘડ %ક1ચ આપો, અને તેમના સ ંબ ંિધત કાયSGLYPH<c=2,font=/QOBAAA+ShrutiRegular> ું  વણ4ન કરો.                                                                                                                                    | ૦૭   |
|                                                                                       |       | અથવા                                                                                                                                                                                                                                                                         |      |
|                                                                                       |       | OR                                                                                                                                                                                                                                                                          |      |
| Q.4                                                                                   | (a)   | What are the objectives of traffic management?                                                                                                                                                                                                                              | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૪ | ( અ ) | GLYPH<c=11,font=/QOBAAA+ShrutiRegular> ાGLYPH<c=13,font=/QOBAAA+ShrutiRegular>ફક 8યવ%થાપનના ઉeેfયો gું છે?                                                                                                                                                                          | ૦૩   |
|                                                                                       | (b)   | Give advantages and disadvantages of traffic islands.                                                                                                                                                                                                                       | 04   |
|                                                                                       | ( બ ) | GLYPH<c=11,font=/QOBAAA+ShrutiRegular> ાGLYPH<c=13,font=/QOBAAA+ShrutiRegular>ફક આઇલે#ડના ફાયદા અને ગેરફાયદા જણાવો.                                                                                                                                                                    | ૦૪   |
|                                                                                       | (c)   | Provide neat sketches of both hazard markers and object markers, and describe their primary functions.                                                                                                                                                                      | 07   |

|                                                                                       | ( ક )   | જોખમ મારકર અને ઑkl]ટ મારકર બંનેના cુઘડ %ક1ચ આપો, અને તેમના Jાથિમક કાયSGLYPH<c=2,font=/QOBAAA+ShrutiRegular>ું વણ4ન કરો.                                     | ૦૭   |
|---------------------------------------------------------------------------------------|---------|-------------------------------------------------------------------------------------------------------------------------------------------|------|
| Q.5                                                                                   | (a)     | Give objectives of accident study.                                                                                                        | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૫ | ( અ )   | અક%માત અGયાસના ઉeેfયો આપો.                                                                                                                      | ૦૩   |
|                                                                                       | (b)     | Give advantages of street lighting.                                                                                                       | 04   |
|                                                                                       | ( બ )   | %GLYPH<c=11,font=/QOBAAA+ShrutiRegular> GLYPH<c=24,font=/QOBAAA+ShrutiRegular>ટ લાઇGLYPH<c=13,font=/QOBAAA+ShrutiRegular> ટmગ ન ા ફાયદ ા જણાવો. | ૦૪   |
|                                                                                       | (c)     | Draw and explain collision diagram.                                                                                                       | 07   |
|                                                                                       | ( ક )   | આGLYPH<c=4,font=/QOBAAA+ShrutiRegular>ૃિત દોરGLYPH<c=24,font=/QOBAAA+ShrutiRegular>   કોલ ીસ ન  ડાયાnામ સમ& વો.                                    | ૦૭   |
|                                                                                       |         | અથવા OR                                                                                                                                    |      |
| Q.5                                                                                   | (a)     | Explain various causes of accidents.                                                                                                      | 03   |
| GLYPH<c=1,font=/QZAAAA+BalooBhai2Regular> GLYPH<c=2,font=/QZAAAA+BalooBhai2Regular> ૫ | ( અ )   | અક%માતોના િવિવધ કારણો સમ&વો.                                                                                                                      | ૦૩   |
|                                                                                       | (b)     | Give advantages of road side arboriculture.                                                                                               | 04   |
|                                                                                       | ( બ )   | ર%તાની બાoુમાં p ૃqારોપણના ફાયદા જણાવો.                                                                                                                 | ૦૪   |
|                                                                                       | (c)     | Explain preventive measures for accidents.                                                                                                | 07   |
|                                                                                       | ( ક )   |                                                                                                                                           | ૦૭   |

અક%માતો માટ1 િનવારક પગલાં સમ&amp;વો.

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