COMPARISON OF BELLEVUE EASTSIDE ARTERIAL STREET DRIVEWAY
AND ROAD APPROACHES
Martin Nizlek, a registered traffic engineer, conducted the following analysis in May 2004.
Similar sections of 140th, 148th and 156th were compared to W. Lake Sammamish Pkwy.
Streets are classified based upon the number of property access points along them VERSUS through traffic needs, such as moving traffic between major points of interest and businesses. Local streets primarily provide direct access to residential property. Expressways and Freeways, at the other end of the spectrum, limit access so as to accommodate non-stop traffic. Bellevue classifies its arterials into subcategories of Major, Minor, and Collector Arterials. The following information indicates that W. Lake Sammamish Parkway has a greater frequency of residential access points than 140th and 156th, even though the latter are classified in a lower category.
CONCLUSION: (1) Care should be taken NOT to implement changes that will promote through traffic, and (2) Speeds should be lowered to residentially compatible levels throughout (30 mph). At present, sections retain a 35 mph posting.
|
Distance |
Entrances By Type |
Total |
Entrances |
Functional |
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|
Road |
Segment |
(Miles) |
Residential |
Non-Residential |
Roads |
Entrances |
Per Mile |
Classif. |
|
|
148th |
BCC to NE 8th |
2.2 |
5 |
16 |
25 |
46 |
21 |
Major Arterial |
|
|
140th |
BCC to NE 8th |
2.1 |
42 |
19 |
23 |
84 |
40 |
Collector Art. |
|
|
156th |
Eastgate to NE 8th |
2.7 |
87 |
20 |
33 |
140 |
52 |
Collector Art. |
|
|
Parkway * |
RndAbout to Northup |
3.5 |
190 |
17 |
14 |
221 |
63 |
Minor Arterial |
|
|
* Note: There are three driveways on the Lake-side for every driveway on the westside. |
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Road Approaches are public roadways, often at signalized intersections. Non-residential driveways are typically at commercial sites and businesses. HOME