Greenhouse gas emissions from the life cycle of the Park and Ride scheme in Portsmouth

Al-Shahin, Aws (2015) Greenhouse gas emissions from the life cycle of the Park and Ride scheme in Portsmouth. MSc dissertation, University of Portsmouth.

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    Abstract

    Park and Ride sites are becoming increasingly common in the UK in an attempt to provide an alternative means of access to town and city centres. Park and Ride schemes are a system for reducing urban traffic congestion in which drivers leave their cars in a place outside the city and travels into the city centre using public transports. One of the objectives for Park and Ride schemes is to encourage car users travelling into large urban centres to use public transport for part of their journey. Another objective of the Park and Ride schemes is often to lower the CO2 emissions as bus travel has a significant potential to lower CO2 emissions through modal shift. The main aim of this project is to investigate the overall carbon impact of Portsmouth Park and Ride scheme to determine whether Portsmouth Park and Ride scheme has a positive impact or a negative impact on the environment.
    The method used in this research to determine the carbon emissions from Portsmouth Park and Ride scheme was according to BS EN ISO 14040:2006 where the product was divided into its components to determine its life cycle.
    Considering the construction and the operation of the Park and Ride scheme, Portsmouth Park and Ride scheme is having a positive impact on the environment. Portsmouth Park and Ride scheme is reducing the carbon emissions by 1.94 x 107 kg CO2 eq for 40 years which is equivalent to 485000 kg CO2 eq per year. The payback time in terms of Carbon dioxide was determined and Portsmouth City Council has to wait for 5 years until Portsmouth Park and Ride scheme starts benefiting the environment.
    However, by looking at how people would have travelled to Portsmouth if there was no Park and Ride scheme, the results indicate that Portsmouth Park and Ride scheme is having a negative impact from the environment because Park and Ride schemes generate new car trips and abstract people from using the public transport. Furthermore, without the Park and Ride scheme some people would have not made their journey at all which concludes that Park and Ride schemes are successful in attracting users to visit towns or city centres.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Technology > School of Civil Engineering and Surveying
    Depositing User: Beth Atkins
    Date Deposited: 13 Nov 2015 14:41
    Last Modified: 13 Nov 2015 14:41
    URI: http://eprints.port.ac.uk/id/eprint/18891

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