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  SANDFORD ON THAMES  
VILLAGE APPRAISAL

PARISH PLAN
PROGRESS REPORT

VILLAGE TRAFFIC STATS
August 2002




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Parish Plan
                                                                                                                                                                                                                               
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PARISH PLAN PROGRESS REPORTS



VILLAGE TRAFFIC STATS


This section of the progress report covers
village traffic survey stats.

Traffic Stats


Along with the Parish Council the Appraisal Group are pressing Oxfordshire County Council for improvements. A copy of the above section of the Parish Plan has been passed on to Mr Dix, who's department covers this area, for a formal response. The main Traffic Report gives more general details.

A copy of the last two traffic surveys taken in the village in August 2002 and November 2002 has been made available to us. This contains eight pages of tables and lots and lots of numbers from the two different survey points on the Henley Road recorded over seven days. Though taken a while ago the data gathered gives an interesting reference, some graphs generated from the data tables are reproduced below:






The Traffic Survey Points

Two surveys were taken, each recording the number, direction and speed of the traffic over seven days.
The first was recorded from 19 - 25 August 2002, south east of Brick Kiln Lane (recording traffic coming from and going to the A4074 bypass - point A on the map below).
The second was taken over 25 November - 1 December 2002, north west of Brick Kiln Lane (recording traffic passing the Garage - point B on the map below).


Survey points


Note: during the first survey Oxford United were at home (to Southend loosing one nil and an attendance of 5,162), and during the second Oxford were again at home (to Lincon winning one nil) with an attendance of 4,923).

The Data Recorded

Both survey points recorded the speed, direction and the time of each vehicle passing, and these are compiled into two types of report.
The "Vehicle Count Report" gives a table of hourly total counts (over the seven days) for the northbound direction, and also a similar table showing the hourly total counts for the southbound direction.
The "Speed Summary" gives a table in hourly totals of traffic speed (over five days), again in the northbound and southbound directions.
There are also morning and afternoon peaks, and counts over 12/24 hour periods.


Point A Results

The graph below shows traffic counts for each hour from Monday 19 August to Sunday 25 August 2002, as measured on the Henley Road, at a point southeast of Brick Kiln Lane.
The blue line represents traffic traveling southbound (out towards the A4074 bypass) and the red line represents northbound traffic (into the village from the A4074 bypass).
Graph A
The high blue peak (on the Saturday with 553 vehicles recorded between 17:00 and 18:00) is probably due to the traffic leaving the Kassam football stadium. This compares with the normal weekday flow of 200-280 vehicles out of the village.
Also it seems the morning and lurch time weekday peaks (140-170) are much less than the early evening rush hour, conversely the traffic from the A4074 is much higher in the weekday mornings (200-160) than the lunch and early evening rush hours.
Interestingly it appears that more traffic flows out of the village via the A4074 than comes into the village (weekday: 10221 in, and 5989 out).


Point B Results

The graph below shows traffic counts for each hour from Monday 25 November to Sunday 1 December 2002, as measured on the Henley Road, at a point northwest of Brick Kiln Lane.
The red line represents northbound traffic (towards the Catherine Wheel) and the blue line represents traffic traveling southbound (towards Brick Kiln Lane).
Graph B
Though the plotted lines have very similar profiles, the red has much stronger peaks during the weekday. The morning rush hour towards Littlemore is just about twice that the other way (350-420 compared to 160-200), the early evening rush hour has much less difference (220-340 compared to 150-250). This could indicate traffic taking a short cut through the village to avoid the morning holdups at the Sainsburys roundabout.

The weekend traffic is much the same in both directions, and despite the football match no major peak is seen.
Again interestingly it appears that more traffic flows past the Catherine Wheel than travels towards Brick Kiln Lane (weekday: 13410 to 9381), and there seems to be about a third more traffic (except during football!) past the Garage side of Brick Kiln Lane that the bypass side.


Traffic Speed

The graph below shows the total traffic counts at various speeds, at both survey points (over Monday to Friday).
The dark blue line represents traffic travelling south at point A (along the Henley Road past Brick Kiln Lane toward the A4074 bypass).
The purple line represents traffic traveling north at point A (along the Henley Road from the A4074 bypass towards Brick Kiln Lane).
The yellow line represents traffic traveling south at point B (along the Henley Road past The Fox towards Brick Kiln Lane).
The turquoise line represents traffic traveling north at point B (along the Henley Road past the Garage towards the Catherine Wheel).
The speed range is in steps of 5 mph from below 15 mph to over 50 mph.

Graph C
The slowest traffic (yellow line) is that passing the Fox (slightly uphill and tends to have more parked cars) with 2292 (86.6%) keeping at or below the speed limit, 274 (10.4%) were speeding and 81 (3.1%) seriously speeding, and amazingly 5 were recorded doing over 40 mph.

Similar (turquoise line) was that passing the Catherine Wheel with 1623 (88.3%) keeping at or below 30 mph, 167 (9.1%) were speeding and 47 (2.6%) seriously speeding, and 2 doing more than 40 mph.

The traffic coming off the bypass into the village (purple line) 1062 (52.2%) were keeping at or below the speed limit, 749 (36.8%) were speeding, 190 (9.5%) seriously speeding and 32 (1.6%) doing more than 40 mph (3 were doing around 50 mph)

The traffic traveling to the bypass (dark blue line) 542 (46.2%) were at or below the speed limit, 428 (36.5%) were speeding, 173 (14.8%) were seriously speeding and 28 (2.4%) were doing more then 40 mph.

Unsurprisingly the section of Henley Road near the bypass was the worst area for speeding traffic (49.9%), but further down the Henley Road there is still quite a significant amount of traffic breaking the speed limit (12.7%).
It would be interesting to see comparable figures for the Heyford Hill end of the Henley Road.

A new traffic survey was taken in 2006.

The main Traffic Report gives more general details.



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Last update: 6 January 2007 http://www.sandfordonthames.co.uk/appraisal/pptstats.htm
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