BARRIERS TO MODAL SHIFT
Figure 9 2011 Am Peak Accessibility to Jobs Ratio

Figure 10 2001 Am Peak Accessibility to Population Ratio

Figure 11 2011 Am Peak Accessibility to Population Ratio

Comparison of modal split with accessibility ratios
3.24 It would be expected that people living in zones with low accessibility ratios would travel more by public transport than those living in zones with high ratios. The mode split data have therefore been compared with the accessibility ratios for work and non work trips as shown in Figures 12 and 13. The data has been normalised to allow comparisons to be made between % trips by car and accessibility ratios.
Figure 12 Comparison of Mode choice and Accessibility for Work Trips

Figure 13 Comparison of Mode Choice and Accessibility for Non-Work Trips

3.25 It can be seen that in general there are more car trips than might be expected for Bearsden/Milngavie, City North West and City South. There are fewer car trips than might be expected for East Kilbride, Giffnock/Newton Mearns (for work), City North and Rutherglen. For the other areas there is a close correlation between % car trips and accessibility. Work and non-work trips show similar trends with only Giffnock/Newton Mearns showing a marked difference.
3.26 Characteristics of the four corridors are summarised in Table 4.
Table 4 Summary of Corridor Characteristics
Corridor | Mode share | Accessibility ratios |
Milngavie/ Bearsden to Glasgow | It is estimated that about 34% of commuting trips to central Glasgow are by car which is similar to the other corridors but at 51% of non commuting trips to the city centre this corridor has the greatest mode share by car. For trips to non city centre destinations the mode share by car is generally similar to Newton Mearns/Giffnock and lower than for Bishopbriggs or East Kilbride. | Much of Bearsden and parts of Milngavie have ratios of car to non car accessibility of 4 or less for access to work indicating that public transport is likely to be viewed as a practical option for some trips based on time and cost factors. For access to population, public transport is less competitive but parts of Bearsden still have ratios of 4 or less. These ratios are falling as road congestion grows suggesting that public transport will become more competitive in the future. |
Bishopbriggs to Glasgow | There is a higher percentage of commuting trips by car to the city centre (38%) and to other destinations (89%) than for the other suburbs but also a higher percentage of trips to the city centre relative to other destinations. As a result the overall mode share by car (77%) is lower than for East Kilbride. For non commuting trips 84% of trips are by car. | Much of the Bishopbriggs into Glasgow corridor has ratios of 4 or less for both access to work and access to population but over the next ten years this is likely to fall to 3 or less for all but the most peripheral parts of the corridor. Public transport should therefore be a practical option for many current trips and can be expected to become increasingly attractive in the coming years. |
East Kilbride to Glasgow | For commuting trips, the area has much the highest proportion of trips by car (82%) but this is accounted for by the lower proportion of trips to the city centre compared with other corridors. For non commuting trips the area has very similar overall mode share to the other suburbs but a lower level of car use to Glasgow city centre than for Bearsden/Milngavie or Bishopbriggs. | For parts of East Kilbride, public transport is likely to be a practical choice for both access to work and population. The model results suggest that the ratio of car to non car accessibility will reduce slightly in the coming years but the major road building such as the M74 and Southern Orbital balance the effects of growing traffic much more than in the north of Glasgow. Peripheral parts of East Kibride and the city have higher ratios, but from Cambuslang/Rutherglen into the city public transport becomes increasingly competitive. |
Giffnock/ Newton Mearns to Glasgow | The Giffnock/Newton Mearns area has a mode share by car that is fairly close to the average for the four suburbs being considered for both commuting and non commuting trips to both the city centre and elsewhere. | For most of Giffnock and parts of Newton Mearns car to non car accessibility ratios for access to work are 4 or less. By 2011 an increasing proportion of the corridor has ratios of 3 or less but the impacts of new roads such as the GSO appear to be greater for Newton Mearns than the impacts of growing traffic levels. For access to population the ratios are more patchy, perhaps reflecting the importance of peripheral travel on the south side of Glasgow. The ratios fall steadily towards the city centre for both access to work and access to population. However by 2011 most of Giffnock and some of Newton Mearns has ratios of 4 or less |