RailFactor

Jyoti TV

Director-Business Development at RailFactor

PUNE, India

Interactions

39 Current Experience

Consultant

WiSH Energy
Nov 2020 – Present
4 yrs

Highest Level Of Education

Mangalore University

Engineering
Dec 1994 - Jun 1998

About Me

Experience

RailFactor

3 yrs 10 mos

Consultant

Full-time

Jan 2021 - Present

WiSH Energy

4 yrs

Consultant

Full-time

Nov 2020 - Present

Education

Mangalore University

3 yrs 6 mos

Engineering

Dec 1994 - Jun 1998

Certifications | Licence

Certifications not yet added

Patents | Awards and recognitions | Memberships

Patents or Awards not yet added

Skills

Skills not yet added

Language Proficiency

Languages not yet added

- Posted 3 years ago

Fixed Block Vs Moving Block

Significant developments are made to railway signalling from Fixed block era to Moving Block, Communication based Train Control System . The below comparison table shows some of the major differences between conventional fixed block systems and moving blocks and the advantages. No. Fixed Block (Absolute Block ) Moving Block 1 Trains are defined per fixed block and only one train in a block at a time. That is protected train routes in a fixed block Trains are considered as moving blocks and distance between trains is maintained at safe distance. 2 In a three aspect fixed block conventional signalling minimum distance between following train with proceed authority towards preceding train is twice the maximum braking distance for the worst-case rollingstock operating in the line plus safety margin provided by overlap beyond a stop signal In a moving block system minimum distance between the following train with proceed authority towards the preceding train is just the braking distance needed for the following train plus a safety margin required by the CBTC system 3 Position of limit of authority is restricted to see a Signal (By driver) visible continuously for 3 seconds Position of limit of authority don’t have such restriction. 4 Even if fixed block signalling system is protected with ATP system, the train has to pass over a transponder to receive a new limit of authority , until train sees a transponder it travels with restricted speed set by the previous transponder Limited authority is continuously updated as there is continuous two way communication between onboard and trackside ATC equipment. 5 High level of operational variability and driver to driver run time variation can cause delays , affect performance ATO can enable continuous , consistent automated driving profile and thereby eliminate driver run time variance 6 Large quantity of track side equipment to be maintained, including signals Trackside signals are used for train recovery during complete ATC non availability thereby eliminate the requirement for Signals 7 If additionally protected with ATP(Automatic Train Protection) , will ensure trains don’t SPAD (Signal Passed at Danger) by automatic enforcement of Movement Authority limit and Automatic enforcement of speed limit Note : If Manual Trainstops or AWS are implemented it's still degraded compared to ATP Maintain two-way radio communication with each train on the network, monitoring train position with onboard equipment and thereby ensuring safe train separation by sending limit of Movement Authority (MA) to each train on the network. It also enforces this limit with overspeed protection 8 Train detection equipments such as Track Circuits , axle counters are mandatory to ensure the fixed block is free before sending a train Train detection is based on onboard equipment,and secondary train detection systems such as Axle counters or track circuits are ‘not necessary ‘ unless degraded modes of operation needed 9 More number of Wayside equipment such as Signals are required Uses onboard VDU (Video Display Unit ) Note:Signals might be used for secondary signalling or degraded mode of operation or train recovery during complete failure of ATC(Automatic Train Control) system 10 Pedestrian crossing and level crossings are allowed as the headway (Headway is the distance between vehicles in a transit system measured in time or space. The minimum headway is the shortest such distance or time achievable by a system without a reduction in the speed of vehicles) are relatively high Pedestrian Crossing and Level crossing are ‘possible’ to integrate with CBTC , however the whole purpose of headway reduction will be impacted and are not commonly implemented. In nutshell both are contradictory requirements (Arguably ) Note: No provider has successfully implemented a level crossing with a CBTC system for heavy traffic road users 11 Less capacity , safety,reliability, serviceability, and resilience High capacity,safety ,reliability,serviceability, and resilience 12 Schedule optimisation is limited possibility Schedule optimisation possible after a disruption with faster recovery 13 Real time Passenger information cannot be accurate Precise Passenger Information Possible and can predict the exact time of arrival 14 No coasting ability to conserve Coasting or other alternate strategy to conserve energy.

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- Posted 3 years ago

Have a job interview coming up? Pre-interview preparation Step

Are you getting ready for a job interview? A practice run can provide you with the necessary preparation to ace the real thing. A quick read-through of the Article published in RailFactor may also help you. Your success in a job interview is heavily reliant on how well you prepare for it. Interview preparation primarily entails researching the job and the company, as well as carefully considering your responses to interview questions. Listed 5 Pre-interview preparation Steps which may help to grab your dream job. PRE-INTERVIEW PREPARATION - STEPS TO GET YOUR DREAM JOB Review the job description Review the keywords and key phrases in job description Refresh your skills and add certification Are you eligibile Ask the questions. Am I right fit. Why the employer should hire you. Know the company Find out vision, mission, management, work culture and types of products/service. Prepare a list of expected interview questions Tell me about yourself. Why are looking for a job change? What are your strengths and weaknesses? Update your social media profile Employers may look at your social media presence to get a sense of your personality and history.

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