Chapter 8—Transportation
Traffic Volumes The Maryland State Highway Administration (SHA) records traffic counts for major roadways throughout the state. Several roadways and intersections in the sector plan area have been measured over time, allowing for an examination of the rate of traffic growth along area roadways. The most recent traffic count data available from SHA are from 2008. Map 23 on page 142 shows 2008 traffic counts for sector plan area roadways. The volume of vehicles in the sector plan area each day must be taken into account when planning for future transportation and public facilities infrastructure. Comparison of data from 2000 to 2007 shows an increase in average daily traffic (ADT) within the sector plan area. Table 29 on page 143 shows that average daily traffic counts along major sector
plan area roadways have increased annually between 2000 and 2007.
With the exception of the MD 450 (Annapolis Road)/MD 564 (Lanham Severn Road)/Princess Garden Parkway intersection just east of the Capital Beltway, traffic has increased the most in the southern and eastern parts of the sector plan area. This change can be attributed to the number of residential subdivisions that have been developed in these areas over the past decade. Overall traffic growth may arise from increases in “cut-through” traffic originating outside the sector plan area. New residential development in other communities east and southeast of the sector plan area, as well as employment growth areas to the west and northwest, may account for additional commuters using sector plan area roadways to access the Capital Beltway and US 50.
Table 29 Sector Plan Area Roadway Traffic Counts, 2000–2007 2000 ADT*
2007 ADT*
% Change, 2000 - 2007
Average Annual Change, 2000–2007
Annapolis Road (MD 450)/Lanham Severn Road (MD 564)/Princess Garden Parkway
32,999
54,111
64.0
8.0%
Martin Luther King, Jr. (MD 704) near US 50 interchange
32,675
45,871
40.4
5.1%
18,391
42.8
5.4%
N/A
42,271
--
--
23,275
29,241
25.6
3.2%
Roadway/Intersection
Annapolis Road (MD 450) & Lanham Severn Road (MD 564) Annapolis Road (MD 450) west of intersection with Glenn Dale Boulevard/MD 193
24,175
N/A
Enterprise Road (MD 193) south of intersection 12,875 with Annapolis Road (MD 450) Greenbelt Road (MD 193) near Good Luck Road intersection Glenn Dale Boulevard (MD 193) and Prospect Hill Road intersection *ADT=Average Daily Traffic
24,531
20,081
1.5
__
0.2%
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Source: Maryland State Highway Administration Glenn Dale-Seabrook-Lanham and Vicinity Approved Sector Plan and Sectional Map Amendment
143