Road improvement from flexible pavement to rigid on Munjul-Panimbang Road Banten

Roads are an important element in promoting public welfare. With the approach of regional development, the achievement of balance and equitable regional development. MunjulPanimbang Road Section, a crossroads of tourist access and liaison between villages and subdistricts, this certainly requires an increase in roads in facilitating transportation mobility. Improving the pavement structure that has been declining is one of the solutions that must be done immediately by replacing the pavement flexure structure into concrete pavement (Rigit Pavement). This project has been completed, thereby analyzing the suitability of the Concrete Pavement Road Pavement Planning. This road improvement uses the Concrete Pavement Concatenated Pavement (BBDT) type, stretching the thickness of concrete plate and the required reinforcement diameter. The research method based on Concrete Pavement Concrete Pavement Planning, Pd T-14 2003. Primary data and secondary data are needed as supporting in research. The result of the analysis shows that concrete pavement planning is 15 cm thick concrete plaster and perforated reinforcement per meter using 5D15 mm 200 mm, while crosslinks per meter of 2D10 mm 500 mm can withstand the burden of vehicles traveling on the road with the age of 20 years.


Introduction
Road is one of the transportation infrastructure that makes it as an important element in promoting public welfare [1]. With the regional development approach, the achievement of regional development balance and equity, in the economic, social, political and cultural sectors [2,3]. The Munjul-Panimbang Road Section, a crossing of tourist access and links between villages and sub-districts, of course, requires an improvement in the way to facilitate transportation mobility. The lag behind development made Banten have to improve to pursue and equate the situation of other regions to accelerate development to make Banten superior.
The Munjul -Panimbang Road Section is located in Pandeglang Regency, which is a tourist road crossing and industrial area. The age of the Munjul-Panimbang road segment has been old enough, that the condition of the structure decrease in term of flexible road pavement, the growth of traffic in tandem with the growth of population is quite dense optimaly, of course it makes the increase in ownership of vehicles passing on the road. The number of vehicles passing on the road with various types of vehicles required the selection of the right type of pavement to be able to withstand the burden of passing vehicles [4], so that road users can pass smoothly without obstacles. Under these conditions, rigid pavement becomes the choice in increasing the road in the section. The road improvement with rigid road pavements is reflected determine the thickness of the rigid pavement in order to be able to withstand the load of vehicles passing on the road section, as well as to determine the diameter of the reinforcement required in the construction.

Research site
The location of the study was carried out on the Munjul -Panimbang Street Section of Pandeglang Regency, Banten Province

Data collection technique
The planning of rigid pavement road in Munjul-Panimbang Banten road requires data to be processed as a reference for determining the pavement thickness and diameter of the concrete slab reinforcement to support the load of vehicles passing through the section. The data collection techniques are carried out in the following ways [5]:

Literature Study
This is the way to collect secondary data to get the support of theories, documents, and relevant reference materials to researchers needs.

Interview
This is by interviewing reliable sources

Primary Data
This the way that the data is taken directly from the object under study consists of traffic data and results of interviews data from assistants the Technical Implementation Activities (PPTK) Department of Highways and Spatial Planning Banten Province

Secondary Data
This is data taken by researchers indirectly to measure the object of the researcher. It consists of map locatio, CBR value and etc.

Observation
This is the data obtained directly by visiting in the field, this is done at stages research preparation to determine the location of the study and identify the problem of field conditions

Literatur / reference book
This is the data obtained from reference books, NSPM (Standard Guidelines and Manual Norms) regarding research themes.

Analysis Method
Road Improvement on Munjul-Panimbang Road Section using rigid pavement, the target of planning is to determine the thickness and diameter of the reinforcement in order to be able to withstand the load of vehicles passing on the road. The planning process is shown in Figure 2. The results of the calculation process can be checked for patric damage analysis and erosion damage if the damage is less than 100% then the planning results are good and if it exceeds 100% the design of the plate thickness must be reviewed [6]. This is based on Pd T14-2003 which is shown in Figure 3 on the next page

Plate Thickness Calculation
Planning improvement of roads with rigid pavement on the Munjul-Panimbang road requires data including survey data. Rough traffic survey data can be obtained by calculating the volume of vehicles passing on the road for four hours, carried out on weekdays to represent another day showing the fluctuation of the vehicle.  Based on Table 3 Rigid on Munjul -Panimbang Road Banten has a road width 6 meter so that number of lines based on the commercial vehicle distribution coefficient 0,5.  The proportion of axes in column 5 is obtained by the equation of division between the total number of axes and the number of axes based on the load with the following example: For STRT axis proportion = 92/128 = 0.72 JSK value of 0.747 x 10 5 with tensile strength of 4.0 Mpa, subgrade CBR of 4%, Effective CBR of 27% so that the estimated thickness of the concrete slab of 15 cm can be seen that the total fatigue that occurs <100% can be concluded calculation is sufficient and 15 cm plate thickness can be used.

Reinforcement planning
Reinforcement Planning is used based on the data obtained: Plate friction coefficient with foundation (µ) = 1. Where As is the reinforcement area Based on the data above, we obtained As = 95.64 mm 2 with As min = 0.1% x 150 x 1000 = 150 As Need = Ps x 100 x plate thickness, the reinforcement diameter can be determined by looking at the following Table: Based on Table 6, List of Reinforced Steel Area, and calculation of reinforcement above As need to be obtained for the longitudinal reinforcement used is 5D15-200 while for transverse reinforcement used 2D10-500mm. Can be described below:

Conclusion
The results of road improvement planning data analysis using rigid pavement on Munjul-Panimbang Banten road based on Pd -T-14-2003 guidelines can be summarized as follows: a. The thickness of the concrete plate used to be able to withstand the load of vehicles passing on the Munjul-Panimbang road segment is 15 cm. b. Longitudinal reinforcement per meter using 5D15 mm -200 reinforcement rods, while transverse reinforcement per meter using 2D10 mm reinforcement rod -500 mm. c. The planning of the thickness of the concrete plate and the diameter of the reinforcement of the concrete plate are in accordance with the guidelines of Pd-T-14-2003 and have a level of security.