Write the types of signals to be provided on road.

1 Answer

Answer :

The types of traffic signals to be provided are:

i) Traffic Control Signals:

a) Fixed time signal

b) Manually operated signal

c) Traffic actuated signal

ii) Pedestrian signal

iii) Special traffic signal

Related questions

Description : Describe the procedure of traffic volume count on any road intersection. Also write the method of representation of traffic volume count data.

Last Answer : The procedure of traffic volume count can be done by any of the methods below: a) Manual counting b) Automatic recorders c) Moving car method a) Manual counting: In this method, the ... Volume flow diagrams at intersection iii) Variation charts iv) Traffic flow map v) Traffic trend charts

Description : Write the objectives of road arboriculture.

Last Answer : The objectives of road arboriculture are: i) To provide attractive landscape on the roadside. ii) To provide shades to the road user. iii) To interrupt the annoying sound waves and fumes from road ... We get fruit bearing trees and timber. viii) To decrease the impact of air pollution and dust.

Description : Write the points to be considered while erecting road signs.

Last Answer : The points to be considered while erecting road signs are: i) The signs should be placed on the left hand side of the road. ii) Road sign should normally be placed at right angles to the pavement and ... of the sign adjacent to highway, should not be less than 60cm away from the edge of the kerb. 

Description : Write the essential road characteristics to be considered in traffic engineering.

Last Answer : The essential road characteristics to be considered in traffic engineering are as follows: i) Gradient ii) Curve of road iii) Design speed iv) Friction between road and tyre surface

Description : Compare the fixed time signals with manually operated signals.

Last Answer : Fixed time signals Manually operated signals 1. These are pre-time signals which are set to repeat regularly a cycle of red, yellow and green lights. 1. These signals are those in which timings ... routes changes during the day.  4. Initial cost is high.  4. Less expensive.

Description : Discuss the legislation and law enforcement education in road accident studies.

Last Answer : Various Legislative Measures have been adopted like 1. Age limit of drivers 2. Penalties of fine on License for careless driving. 3. Enable Police to check the drivers for the drunkenness. ... for children. 4. Posters exhibiting serious results due to carelessness of road users can be useful.

Description : Discuss the method of spot speed studies on a road section

Last Answer : i) The simplest method of finding spot speed is by using endoscope. ii) The observer is stationed on one side of the road and starts a stopwatch when a vehicle crosses that section iii) An endoscope is ... of vehicles in that group on Y axis. This graph is called Speed distribution curve.

Description : Describe the points to be considered for road safety.

Last Answer : Points to be considered for road safety are: 1) The road should be designed to proper standards, built to the correct specifications & maintained adequately. 2) The safe speed at which the ... to about 30%. 8) Channelization Islands Reduces the number of Collision points & hence promotes safety.

Description : Suggest the preventive measures to prevent road accidents.

Last Answer : Following measure/remedies are suggested to prevent road accidents: - Engineering Aids/Measures 1. By checking and Redesigning the Road geometrics, if necessary (sight distance, width of ... safety should be displayed - This knowledge should also be given to children, schools, parents

Description : Describe the factors affecting visibility of road at night time.

Last Answer : Factors affecting visibility of road at night time are: i)Amount and distribution of light: The distribution should be downwards so that high percentage of light is utilized for illuminating the pavement ... : To perceive an object, the physical and mental condition of driver plays a vital role.

Description : Explain with sketch: i) Rotary island ii) Channelizing island

Last Answer : a) Rotary Island: A traffic island constructed in the center of an intersection to force the movement of traffic in the clockwise direction is called Rotary Island. They are constructed ... shape of channelizing island will very much depend upon the layout and dimensions of the intersection.

Description : Explain the method of recording and reporting of an accident.

Last Answer : There are three steps involved: I) Collection of Accident data II) Accident Report III) Accident Records I) Collection of Accident data: a) General: Date, Time, Persons involved in ... are most useful to compare the Accident pattern before & after the Remedial Measures have been taken.

Description : Discuss the factors affecting selection of type of roadside trees.

Last Answer : Factors affecting selection of type of roadside trees are: i) Trees selected should be such that it provides a large and dense crown with beautiful and uniform shape. ii) Trees must be able to ... pattern etc. viii) Trees like Gulmohar, Ashoka can be planted for landscaping on highways.

Description : Enumerate the advantages and disadvantages of grade separated intersections

Last Answer : Advantages: i) Grade separated intersections provide maximum facility to the crossing traffic and avoid accident while crossing. ii) They provide increased safety for turning traffic. By introducing ... They may cause undesirable crests and sags in vertical alignment in flat or plain areas. 

Description : Explain the uses of various carriage way markings.

Last Answer : The uses of various carriage way markings are: i) Center line marking: They are provided on two way roads to separate the streams of traffic moving in opposite direction. ii) Traffic ... the form of monument within the carriageway so as to prevent vehicles from colliding with the obstruction.

Description : Describe the necessity of origin and destination study.

Last Answer : Necessities of origin and destination study are: i) To judge the adequacy of existing routes and to use in planning new network of roads. ii) To plan transportation system and mass transit ... transport. viii) To establish design standards for the roads, bridges and culverts along the route.

Description : Classify the traffic markings.

Last Answer : Traffic markings are follows: 1. Carriageway marking or pavement marking 2. Kerb marking 3. Object marking 4. Reflector marking or unit marking

Description : List out the factors affecting reaction time of driver. 

Last Answer : The factors affecting reaction time of driver are: a) Physical and Psychological characteristics of driver b) Type of the problem involved c) Environmental condition d) Temporary factors ( Eg: Motive of trip, Travel speed, Fatigue)

Description : List out the traffic controlling devices.

Last Answer : The types of traffic controlling devices are as follows: i) Traffic signs or Road signs ii) Traffic markings or Road markings iii) Traffic signals iv) Traffic Islands

Description : Give the purposes of traffic studies.

Last Answer : i) To collect the data about type and volume of traffic at present and to estimate the same that the road is expected to carry in near future. ii) To determine the existing facilities such as ... traffic survey relating to accidents. vii) To estimate the amount of road taxes that can be levied.

Description : Define Traffic engineering

Last Answer : The phase of highway engineering which deals with planning and geometrical design of Roads, streets, adjoining lands with traffic operations for safe convenient and economic transportation of persons and goods is called as Traffic Engineering.

Description : What can prevent you from hearing road signals?

Last Answer : Having the radio on too

Description : What type of service is NOT provided by the circuit shown in the illustration? EL-0094 A. Logging of engine order signals from the bridge. B. Printed record of alarms as they ... . Visual metering of temperature and pressure conditions. D. Periodic recording of pressure and temperature conditions.

Last Answer : Answer: A

Description : The slope on the road generally provided on the curves is known as a.Angle of repose b.Angle of friction c.Angle of banking d.Angle of reaction e.None of the above

Last Answer : c. Angle of banking

Description : The ideal angle of banking provided on roads a.Depends on (velocity)2 of vehicle b.Depends on the nature of road surface c.Depend on coefficient of friction between the road and the vehicle cantact point d.Depends on weight of the vehicle e.All above

Last Answer : a. Depends on (velocity)2 of vehicle

Description : Drop manholes at the junctions of sewer lines, are provided if A. Invert level of a branch sewer is more than 60 cm that of the main sewer B. Sewer line runs along a main road C. Ordinary manhole cannot be built D. Two sewer lines intersect

Last Answer : ANS: A

Description : Pick up the correct statement from the following: A. Inlets are provided on the road surface at the lowest point for draining rain water B. Inlets are generally provided at an interval of ... along straight roads C. Inlets having horizontal openings, are called horizontal inlets D. All the above

Last Answer : ANS: D

Description : no super elevation is provided on a road along curves, pot holes may develop at (A) Inner edge of the road (B) Outer edge of the road (C) Centre of the road (D) Nowhere on the road

Last Answer : Answer: Option B

Description : If the rate of change of the super-elevation along a curved portion of a 7 metre wide road is 1 in 150 and the maximum super-elevation allowed is 1 in 15, the maximum length of the transition curve to be provided at either end, is (A) 65 m (B) 70 m (C) 75 m (D) 80 m

Last Answer : Answer: Option B

Description : Along a hill road, a side drain is provided on (A) Outer side of a spur curve (B) Outer side of a re-entrant curve (C) Outer side of both (a) and (b) (D) Inner side of both (a) and (b)

Last Answer : Answer: Option D

Description : In a right angle bend of a road provided with a transition throughout, the maximum polar angle will be (A) 10° (B) 15° (C) 20° (D) 30°

Last Answer : Answer: Option B

Description : Intermediate catch water drains are provided only, if (A) Catchment area of the watershed above road is large (B) Intensity of rainfall is heavy (C) Single catch water drain is inadequate (D) All the above

Last Answer : Answer: Option D

Description : To prevent a head-on-collision of vehicles travelling in opposite directions along four-lane roads (A) Markings on the road are provided (B) Physical dividers are provided (C) Area dividers are provided (D) Medians of wide area are provided

Last Answer : Answer: Option D

Description : If the coefficient of friction on the road surface is 0.15 and a maximum super-elevation 1 in 15 is provided, the maximum speed of the vehicles on a curve of 100 metre radius, is (A) 32.44 km/hour (B) 42.44 kg/hour (C) 52.44 km/hour (D) 62.44 km/hour

Last Answer : Answer: Option C

Description : In hill roads the side drains arc provided (A) Only on the hill side of road (B) Only on the opposite side of hill (C) On both sides of roa (D) None of the above

Last Answer : Answer: Option A

Description : On Broad Gauge tracks Banner flag at a level crossing shall be provided at a distance of--- ---------- from ends of check rail before opening the gate for road traffic. a) 5 meters* b) 3 meters c) 6 meters d) 30 meters

Last Answer : a) 5 meters*

Description : Speed breaker has to be provided on road approaches of level crossing at maximum feasible distance within Railway boundary but not exceeding a) 10 meters b) 15 meters c) 20 meters* d) 200 meters

Last Answer : c) 20 meters*

Description : Mostly long span rail-cum road bridges are provided with a) rocker & roller bearings b) segmental roller with oil bath* c) Sliding bearings d) centralised bearings

Last Answer : b) segmental roller with oil bath

Last Answer : 2 types of signals

Last Answer : 3 (three) types. Such as- a. Arm signal , b. Light signal and c. Sound signal.

Description : Which of the two types of magnetic tape is used to record audio and instrumentation type signals in the VLF to 2.5MHz frequency range?

Last Answer : Analog magnetic tape.

Description : Tissues are constructed from many distinct cell types that perform different functions in response to signals from each other and the extracellular matrix. During tissue development and tissue regeneration, ... that stem cells undergo when they are required to generate a particular type of cell?

Last Answer : Asymmetric cell division. After asymmetric division, each of the two resulting daughter cells has a unique life course. For example, one daughter cell may differentiate into a specific cell type ( ... cell), whereas the other daughter cell may remain a stem cell with unlimited proliferative ability.

Description : List different types of signals. State application of each.

Last Answer : Different Types of Signals: 1) Flag signals: This is shown by signalman if green flag is raised; it means to proceed with caution. Green flag shown down, it means there is track defect; ... green lamps indicate indications as in the 2-aspect system, and the yellow lamp shows the caution indication.

Description : Write the code of signals used in ranging with respect to : i) Correct position ii) Fix the ranging rod iii) Vertical position of ranging rod iv) Move slowly to left of observer 

Last Answer : i) Correct position : Both hands above Head and then Brought Down ii) Fix the ranging rod : Both Arms extended forward horizontally and the hands depressed briskly iii) Vertical position of ranging rod : 1 ... and moved to the Left iv) Move slowly to left of observer : Slow sweeps with Left Hand